n moles of a diatomic gas has undergone a cyclic process ABC as shown in figure. Temperature at A is `T_(0).` Find
is heat rejected by the gas, if yes how much heat is rrejected ?

Explanation

Since `Delta u and Delta W` both are negative in process CA
`thereforeDelta Q` is negative in process CA and heat is rejected in process CA
`Delta Q _(CA) =Delta w_(CA) + Delat u _(CA)`
`=-1/2[P_(0)+2P_(0)] V_(0) -5/2 nR (T_(e ) - T _(a))`
`=-1/2 [ P _(0)+ 2P _(0) ] V_(0) -5/2 nR ((4P_(0)V_(0))/(nR)-(P_(0)V_(0))/(nR))`
`=-9P_(0)V_(0)=` Heat injected.