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What is the entropy change in 2 mol N(2)...

What is the entropy change in 2 mol `N_(2)`, when its temperature is taken from 400 K to 800 K, at constant pressure-

A

30J/K

B

60J/K

C

40J/K

D

20J/K

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaS=nC_(P)"ln"(T_(2))/(T_(1))=2xx(7)/(2)Rxx"ln"(800)/(400)=40J*K^(-1)`
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