Published by:
CGP EDU Academic Team
Published on: August 14, 2026
One mole of an ideal diatomic gas (C v = 5 cal) was transformed from initial 25 0 C and 1 L to the state when temperature is 100 0 C and volume 10 L. The entropy change of the process can be expressed as (R = 2 calories/mol/K)
A
3 ln 
+ 2 ln 10
+ 2 ln 10
B
5 ln 
+ 2 ln 10
+ 2 ln 10
C
7 ln 
+ 2 ln 
+ 2 ln
D
5 ln 
+ 2 ln 
+ 2 ln
Text Solution
Verified by ExpertsThe correct answer is:
B
S = nC V ln 
+ nR ln 
= 
×2 ln 
+ 2 ln 10
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