A heat engine carries one mole of an ideal monoatomic gas around the cycle as shown in the figure, the amount of heat added in the process AB and heat removed in the process CA are :

Options

A. `q_(AB) = 450 R " and "q_(CA) = - 450 R`
B. `q_(AB) = 450 R " and "q_(CA) = - 225 R`
C. `q_(AB) = 450R " and "q_(CA) = - 375 R`
D. `q_(AB) = 375 R " and "q_(CA) = - 450 R`

Answer

C

Explanation

At constant volume `DeltaU=q_(v)=nC_(vm)DeltaT`
at constant pressure `DeltaH = q_(p)=nC_(p,m)DeltaT`