Absolute scale of temperature is reproduced in the laboratory by making use of aRadiation pyrometer-Platinum resistance thermometer-Constant volume helium gas thermometer-Constant pressure ideal gas thermometer-

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Standard XII

Physics

Gas Thermometer

Absolute scal...

Question

Absolute scale of temperature is reproduced in the laboratory by making use of a

Radiation pyrometer

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Platinum resistance thermometer

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Constant volume helium gas thermometer

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Constant pressure ideal gas thermometer

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Solution

The correct option is C
Constant volume helium gas thermometer

Constant volume helium gas thermometer

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Similar questions

Q. A temperature

T

is measured by a constant volume gas thermometer. Choose the correct statements.

(i) T

is independent of the gas used at all pressures

(i i) T

is independent of the gas used only at low pressure

(i i i)

The ideal gas scale agrees with the absolute scale of temperature

(i v)

The ideal gas scale does not agree with the absolute scale of temperature

The ideal gas law, which relates the P, V and temperature T of an ideal gas in a closed box, given as PV = nRT, can be manipulated to construct an effective thermometer. A "constant volume gas thermometer” uses a sample of gas (commonly, nitrogen or helium) in a closed chamber, thus fixing the volume V. The temperature is then measured by reading off the corresponding pressure P. At the freezing point of water, it is seen that a gas thermometer records a pressure of 0.9 x 10⁵ Pa; it also records a pressure of 1.2 x 10⁵ Pa at the boiling point of water. What pressure will you find in the gas chamber at a room temperature of 23⁰C?

Q. In constant volume gas thermometer , the thermometric property used is

Q. A constant volume gas thermometer shows pressure readings at