gas thermometer meaning in Hindi

• गैस तापमापी • गैस थर्मामीटर

gas: निश्चेतक नाइट्रस
thermometer: तापमापी थर्मामीटर

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Most thermometers are originally calibrated to a constant-volume gas thermometer.
Such systems are known as " ideal gas thermometers ".
For such measurements a gas thermometer is more suitable.
The ideal gas thermometer is, however, not theoretically perfect for thermodynamics.
These include helium vapor pressure thermometers, helium gas thermometers, monochromatic radiation thermometers.
So a gas thermometer, no matter how small or unobtrusive, is incapable of measuring negative temperatures.
Although it is not a particularly convenient device, the gas thermometer provides an essential theoretical basis by which all thermometers can be calibrated.
In 1848, he extended the Carnot Clapeyron theory still further through his dissatisfaction that the gas thermometer provided only an operational definition of temperature.
Other thermometers ( e . g . mercury thermometers, which display the volume of mercury to the observer ) may now be constructed, and calibrated against the ideal gas thermometer.
As a practical matter it is not possible to use a gas thermometer to measure absolute zero temperature since the gases tend to condense into a liquid long before the temperature reaches zero.

noun.

thermometer that measures temperature by changes in the pressure of a gas kept at constant volume
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