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Questions  

A mono–atomic gas is expanded from state A to state B according to the process AB as shown in figure. The molar specific heat for the process is ___ 

 

a
2R
b
3R
c
4R
d
5R2

detailed solution

Correct option is A

P  =  const×v ⇒ PV−1 = constant ∴   n = –1 C=Cv+R1-n=Cv+R2=3R2+R2=2R

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