Thermodynamics Question 61

Question: In an isobaric process, the ratio of heat supplied to the system (dQ) and work done by the system (dW) for diatomic gas is

[AFMC 2002]

Options:

A) 1 : 1

B) 7 : 2

C) 7 : 5

D) 5 : 7

Show Answer

Answer:

Correct Answer: B

Solution:

dQdW=dQdQdE ; dE=dW+dQ ; dW=dQdE

=ncpdTncpdTncvdT

=cp(cpcv)

=7R2R {for diatomic of gas cp=7R2 }



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