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Question

For a gas (R/Cv)=0.67 the gas is made up of molecules which are
(R = gas constant and Cv = heat capacity at constant volume)

A
monoatomic
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B
diatomic
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C
polyatomic
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D
mixture of gases
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Solution

The correct option is A monoatomic
we know
R=CpCv
Cp=heat capacity at constant pressure

dividing whole equation by Cv
RCv=CpCvCv=0.67orCpCv1=0.670 orCpCv =γ=1.67

γ is measure of atomicity of gas for monoatomic gases its value is around 1.67.

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