A reversible engine contains 0.20 mol of ideal monatomic gas, initially at 600 K and confined to 2.0 L. The gas undergoes the following cycle:
Isothermal expansion to 4.0 L.
Isovolumic cooling to 300 K.
Isothermal compression to 2.0 L.
Isovolumic heating to 600 K.
Calculate the net heat added during the cycle.
I calculated heat add using Q=CvV(P1-P2)/R . I used that equation for two isovolumic process and got the difference
I got 750j, it is wrong, why?
Calculate the net work done during the cycle.
I used W=nRT ln(V1/V2) for isothermal and P(V1-V2) for isothermal compression
asd got the differnce. answer was 190 J again it wrong