One junction is placed where the temperature is to be measured, and the other is kept at a constant lower temperature. A gas thermometer measures temperature by the variation in volume or pressure of a gas. Any two different metals or metal alloys exhibit the thermoelectric effect, but only a few are used as thermocouplesâe.g., antimony and bismuth, copper and iron, or copper and constantan (a copper-nickel alloy). gas thermometer n a device for measuring temperature by observing the pressure of gas at a constant volume or the volume of a gas Thermocouple, also called thermal junction, thermoelectric thermometer, or thermel, a temperature-measuring device consisting of two wires of different metals joined at each end. The thermometer is a device used to check the temperature of an object. A constant volume gas thermometer is composed of a bulb filled with a fixed amount of a dilute gas that is attached to a mercury manometer. A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object). A thermometer in which the change of volume or pressure of a column of gas is used to measure temperature. A maximum thermometer is a familiar type of liquid thermometer. A gas thermometer measures temperature by the variation in volume or pressure of a gas. Gases such as nitrogen or simply air are also suitable substances for use in volumetric gas thermometers. constant pressure gas thermometer. Bimetal (bimetallic) This is a mechanic type that works with a bimetal strip. gas thermometer- thermometer that measures temperature by changes in the pressure of a gas kept at constant volume. The Most Surprisingly Serendipitous Words Of The Day. Constant-volume gas thermometers are used more often than constant-pressure. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the digital sensor in an It measures temperature in the range from o k 5oo k. ÎV α ÎT Where ÎT=ÎV/Vογ=ÎV×273/Vο And γ=1/273 for Constant volume thermometers; In this thermometer, pressure increases directly with the increase in temperature. a device for measuring temperature by observing the change in either pressure or volume of an enclosed gas. The NBS-55 was a simple numerical modification to the NBS-39 Constant-Volume, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. Typically, these gas thermometers work best at measuring very low temperatures. Bimetal means that it is made of two metals. Thermocouple, a temperature-measuring device consisting of two wires of different metals joined at each end. It is similar to a partial immersion thermometer but a difference exists in the way these thermometers are used and in the areas they are applied. The temperature scale of a gas thermometer coincides with a thermodynamic temperature scale; thus, a gas thermometer can be used as a primary thermometric device. Love words? What Is An Em Dash And How Do You Use It? Thermocouple definition is - a device for measuring temperature in which a pair of wires of dissimilar metals (such as copper and iron) are joined and the free ends of the wires are connected to an instrument (such as a voltmeter) that measures the difference in potential created at the junction of the two metals. Gasthaus definition is - a German inn or tavern. (85.) These examples are from corpora and from sources on the web. A gas thermometer can be filled with any gas, but the most popular option is hydrogen. The height of the mercury in the first column is set to a reference point or pressure P that it must stay at, while the mercury in the r… gas thermometer översättning i ordboken engelska - svenska vid Glosbe, online-lexikon, gratis. A gas thermometer can be filled with any gas, but the most popular option is hydrogen. What is the definition of gas thermometer? In this type of thermometer, the thermometric property is pressure which means that any change occurring in the pressure of the gas in gas tube will indicate the change in value of the temperature. a device for measuring temperature. Plots of volume vs. temperature (at constant pressure) and pressure vs. temperature (at constant volume) reflected the same conclusion - the volume and the pressure of a gas reduces to zero at a temperature of -273°C. Significant experimental contributions by NBS began with the work of Hoge and Brickwedde (29), who calibrated an ensemble of resistance thermometers against a gas thermometer to establish a scale (known as the NBS-39 Scale) for the calibration of thermometers from 14K to 83K. Liquid thermometers often include both Celsius and Fahrenheit temperature scales, which are displayed on either side of the tube. ter. What are synonyms for gas thermometer? They were simple, inexpensive, long-lasting, and able to measure a wide temperature span. Gas thermometry synonyms, Gas thermometry pronunciation, Gas thermometry translation, English dictionary definition of Gas thermometry. A thermometer in which the change of volume or pressure of a column of gas is used to measure temperature. Definition of gas thermometer in English: gas thermometer. This branch of measurement of the temperature of a substance is called thermometry. A thermometer has two important elements: (1) a temperature sensor (e.g. Constant volume gas thermometer - definition A constant volume gas thermometer contains a mass of gas enclosed in a bulb attached to a mercury manometer having a column partially filled with mercury that is connected to a flexible tube containing another partially filled column of mercury, known as reservoir, attached to the other end. The Dictionary.com Word Of The Year For 2020 Is …. In making a liquid thermometer, the mercury is ordinarily driven to the top of the tube by heating. A device to measure temperature by measuring the pressure exerted by a definite amount of gas enclosed in a constant volume; the gas (preferably hydrogen or helium) is enclosed in a glass or fused-quartz bulb connected to a mercury manometer. It consists of … “Capital” vs. “Capitol”: Do You Know Where You’re Going? thermometer- measuring instrument for measuring temperature. It is a specialized type of liquid-in-glass thermometer, and it is unusual in that it measures temperature only within a very limited range, usually within about 10° F (5.5° C). Liquid thermometers were once the most common type in use. Gas thermometer at a constant volume - Duration: 1:16. Based on WordNet 3.0, Farlex clipart collection. The guage pressure reading is 30 kPa. Where ΔT=ΔV/Vογ=ΔV×273/Vο. Bimetal (bimetallic) This is a mechanic type that works with a bimetal strip. What does gas thermometer mean? Solid strips of different materials such as copper and aluminum can be made to stick together (bi-metallic strip). Most material © 2005, 1997, 1991 by Penguin Random House LLC. Now that we have learned the principle of gas thermometers and understood what absolute zero is, let us learn about different kinds of gas thermometers. Celsius, Fahrenheit, Kelvin, OH MY. Learn more. “Misinformation” vs. “Disinformation”: Get Informed On The Difference. gas thermometer: 1 n thermometer that measures temperature by changes in the pressure of a gas kept at constant volume Synonyms: air thermometer Type of: thermometer measuring instrument for measuring temperature The change in pressure is used to indicate a change in temperature. What Does Amen Mean At The End Of A Prayer? Bläddra milions ord och fraser på alla språk. Constant-volume gas thermometers are gas-filled bottles (for instance, helium-filled) of constant volumes connected by thin tubes to pressure-measuring devices. The Liquid-in-Glass Thermometer consists of a bulb, a stem, a temperature scale, a reference point, an inert gas and a working point. Modified entries © 2019 by Penguin Random House LLC and HarperCollins Publishers Ltd. Also shown is the equipment for the four temperature baths Pressure is the force per unit area that the gas molecules exert on the container as they How do you use gas thermometer in a sentence? The temperature of the fixed point (reference point) of the International Practical Temperature Scale was determined with the aid of a gas thermometer. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. thermometer definition in English dictionary, thermometer meaning, synonyms, see also 'clinical thermometer',gas thermometer',resistance thermometer',dry-bulb thermometer'. Constant-volume gas thermometers are used more often than constant-pressure. What does gas thermometer mean? Hydrogen, oxygen, nitrogen, and carbonic-acid gas-thermometers have been employed. In a gas thermometer (constant pressure conditions), the gas has a volume of 2.00 L at 85.0 C. The thermometer is placed in a freezer. What is the meaning of gas thermometer? However, we note in Section 2.8 that any real gas will exhibit departures from ideal gas behavior if we make sufficiently accurate measurements. Thermometer that measures temperature by changes in the pressure of a gas kept at constant volume (synset 103431195) hypernym : thermometer - measuring instrument for measuring temperature Measurements of the variations of pressure and volume with changes in the temperature could be made and plotted. constant pressure gas thermometer In this thermometer, volume increases directly with the increase in temperature. Definition of gas thermometer in English: gas thermometer See synonyms for gas thermometer noun historical Physics A thermometer in which the change of volume or pressure of a column of gas is used to measure temperature. gas thermometer n. a device for measuring temperature by observing the pressure of gas at a constant volume or the volume of a gas kept at a constant pressure noun historical Physics . This type works best with very low temperatures. All Free. Definition of gas thermometer : a thermometer containing gas (as hydrogen) as the enclosed thermometric substance, variations in temperature being indicated by the change in pressure of a fixed quantity of gas required to maintain the gas at a constant volume or the change in volume of a fixed quantity of gas maintained at a constant pressure A gas thermometer is a thermometer that measures temperature by the variation in volume or pressure of a gas. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition If we could use an ideal gas in our ideal-gas thermometer, we could be confident that we had a rigorous operational definition of temperature. traduction gas thermometer dans le dictionnaire Anglais - Francais de Reverso, voir aussi 'thereafter',theatregoer',theatre-goer',therefore', conjugaison, expressions idiomatiques a gas thermometer comprises a casing with a casing end section of good heat conducting metal and a main casing section of poorly heat conductive material This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. gas thermometer - WordReference English dictionary, questions, discussion and forums. © 2003-2012 Princeton University, Farlex Inc. gas-thermometer: A thermometer in which the variation of volume or tension of a fixed quantity of dry gas indicates the temperature of the latter. See synonyms for gas thermometer. Why Do “Left” And “Right” Mean Liberal And Conservative? Total Immersion Thermometer is a glass thermometer that is used to measure the temperature of industrial liquids and gases. Gas thermometer definition, a device for measuring temperature by observing the change in either pressure or volume of an enclosed gas. Farlex Partner Medical Dictionary © Farlex 2012. What does the South African term foefie slide mean?a a device for measuring temperature by observing the pressure of gas at a constant volume or the volume of a gas kept at a constant pressure. Definition of Temperature | Doc Physics - Duration: 13:30. A gas thermometer measures temperatures in the interval from ~ 2° K to 1300° K. The maximum attainable accuracy of a gas thermometer, depending on the temperature measured, varies from 3 × 10-3 °K to 2 × 10-2 °K. the act of a person who encloses something in or as if in a casing or covering, a school giving instruction in one or more of the fine or dramatic arts, a comic character, usually masked, dressed in multicolored, diamond-patterned tights, and carrying a wooden sword or magic wand, Dictionary.com Unabridged a thermometer filled with dry air or a gas, the expansion or increased pressure of which indicates the degree of heat; used to measure high temperatures. Also known as constant-volume gas thermometer. The range of a thermometer is the difference between the maximum and minimum temperatures that the thermometer … Constant Volume Gas Thermometer One common apparatus is a constant volume thermometer. 4. https://encyclopedia2.thefreedictionary.com/Gas+Thermometer. A constant volume gas thermometer works on the zeroth law of thermodynamics, which states that if two bodies individually are in thermal equilibrium with a third body then, the two bodies will also be in thermal equilibrium with each other. Calorimetry also means the measurement of heat but in joules. Interpolating gas thermometer 3.0 K - 24.5561 K Relation of pressure and temperature of constant volume of gas when use helium-4 and helium-3 as working fluid Platinum resistance thermometer 13.8033 K - 1234.93 K A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object). The accuracy of the measurement mainly depends upon the extent of immersion of the thermometer into the bulb and the stem as well. a device for measuring temperature by observing the pressure of gas at a constant volume or the volume of a gas kept at a constant pressure. In a maximum thermometer, the liquid is pushed up the glass tube, but cannot fall easily when the temperature lowers. gas-thermometer: A thermometer in which the variation of volume or tension of a fixed quantity of dry gas indicates the temperature of the latter. Many industrial thermometers utilize gas in a metal or glass enclosure. The glass is then sealed off, resulting in a vacuum when the mercury contracts during cooling. Volume Thermometer This thermometer functions by Charles's Law.Charles's Law states that when the temperature of a gas increases, so does the volume. air thermometer. If your language skills aren’t already top-notch, then this vocab quiz can get you up to speed! gas thermometer (n.) 1. thermometer that measures temperature by changes in the pressure of a gas kept at constant volume gas thermometer in American English. 4. A gas thermometer measures temperature by the variation in volume or pressure of a gas. One common apparatus is a constant volume thermometer. Hydrogen, oxygen, nitrogen, and carbonic-acid gas-thermometers have been employed. Its principle of operation is based on the dependence in an ideal gas of the pressure or volume on the temperature. A thermometer is a device that measures temperature or a temperature gradient. And γ=1/273 for ideal gases. Using Charles's Law, the temperature can be measured by knowing the volume of gas at a certain temperature by using the formula, written below. Meaning of gas thermometer. noun. It measures temperature in the range from o k 5oo k. ΔV α ΔT. A cylindrical Ideal Gas thermometer of diameter 3 mm and height 10 cm is exposed to a temperature source. This definition explains the meaning of Liquid-in-Glass Thermometer and why it matters. Proper usage and audio pronunciation (plus IPA phonetic transcription) of the word gas Thermometers Using Gas. A gas thermometer of such high precision is a complicated device; the deviation of the properties of the gas filling the device from the properties of an ideal gas, the change in bottle volume with temperature changes, the presence of gas impurities and especially condensed gas impurities, gas sorption and desorption by bottle walls, gas diffusion through bottle walls, and temperature distribution along the connecting tube must be taken into account when using such a device. Gas Thermometer. The hydrogen gas-thermometer is considered as the normal, but all are reduced to the ideal gas-thermometer by theoretical formulas. 1.2.2 Gas Thermometer Shown in Figure 1.1 is the gas thermometer which consists of a hollow spherical tank filled with helium and connected to an absolute pressure gauge. a thermometer filled with dry air or a gas, the expansion or increased pressure of which indicates the degree of heat; used to measure high temperatures. an instrument used to measure temperature, esp one in which a thin column of liquid, such as mercury, expands and contracts within a graduated sealed tubeSee also clinical thermometer, gas thermometer, resistance thermometer, thermocouple, pyrometer a device for measuring temperature. Constant volume gas thermometer, as the name suggests, has constant volume of gas in a tube. Information and translations of gas thermometer in the most comprehensive dictionary definitions Gas thermometer definition: a device for measuring temperature by observing the pressure of gas at a constant volume... | Meaning, pronunciation, translations and examples In a hot gas, the molecules move faster than in a cold gas; the mass remains the same, but the kinetic energy, and hence the temperature, is greater because of … See more. Gas thermometers work best at very low temperatures. a thermometer filled with dry air or a gas, the expansion or increased pressure of which indicates the degree of heat; used to measure high temperatures. Conceptual ideas develop logically and sequentially, ultimately leading into the mathematics of the topics. The constant-volume gas thermometer – it contains a gas; when the temperature rises, the pressure increases. In such gas thermometers, gas temperature changes in the bottle are proportional to pressure changes. 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