A diatomic gas (g = 1.4) does 200 J of work when expanded isobarically. Find the  heat given to the gas in the process.

For a diatomic gas,  CV=52R,   Cp=72RIn an isobaric process, W=p(V2−V1)=nR(T2−T1)⇒T2−T1=WnR .Q=nCpΔT=nCpWnR=CpWR=72RWR=72×200=700  J .