JEE PHYSICS MCQ: THERMODYNAMICS

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Analyzing +4 | -1

The following sets of values for

{C_V}

and

{C_P}

of a gas has been reported by different students. The units are

cal/g

mole

K.

Which of these sets is most reliable

View answer and explanation

Correct option: A

{C_V} = 3,\;{C_P} = 5

Option A (

{C_V} = 3,\;{C_P} = 5

) is the most reliable because it satisfies the relation

{C_P} - {C_V} = R \approx 2

and the ratio

{C_P}/{C_V}

corresponds to a standard value for monoatomic gases.

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0.25\,\,{m^3}

{10^3}N/{m^2},

T

P

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\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)