One mole of an ideal gas has an interal energy given by `U=U_(0)+2PV` , where `P` is the pressure and `V` the volume of the gas. `U_(0)` is a constant. This gas undergoes the quasi`-` static cyclic process `ABCD` as shown in the `U-V` diagram. The molar heat capacity of the gas at constant pressure isA. `2R`B. `3R`C. `(5)/(2)R`D. `4R`

One mole of an ideal gas has an interal energy given by `U=U_(0)+2PV`

1.	One mole of an ideal gas has an interal energy given by `U=U_(0)+2PV` , where `P` is the pressure and `V` the volume of the gas. `U_(0)` is a constant. This gas undergoes the quasi`-` static cyclic process `ABCD` as shown in the `U-V` diagram. The molar heat capacity of the gas at constant pressure isA. `2R`B. `3R`C. `(5)/(2)R`D. `4R`
Answer» Correct Answer - B `DeltaU=2 Delta(P V)=2 R DeltaT` `implies C_(V)=2R` `implies C_(P)=3R`

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