Value of two principle specific heats of a gas in cal ${\left( {{\rm{mol K}}} \right)^{ - 1}}$ determined bt different students are given. Which is most reliable?

JEE PHYSICS MCQ: THERMODYNAMICS

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Value of two principle specific heats of a gas in cal

{\left( {\mathrm{mol K}} \right)^{ - 1}}

determined bt different students are given. Which is most reliable?

View answer and explanation

Correct option: C

7, 5

The correct answer is C (7, 5) because the difference between

C_p

and

C_v

should be equal to R, which is approximately 2 cal/(mol K).