All the Energy is transferer In Increasing Internal Energy Bar System and Because Internal Energy Is related to Kinetic Energy and Kinetic Energy is Related to Temperature increasing Internal Energy increases America Energy and that Increases Temperature. So all the Energy In it Cas Valium Goes in Through Increasing Temperature no Pv Work is Done no expansion is done it constant pressure. However according to the ideal gasa temperature must change as well and a value must change. So that means that some energy goes into increasing temperature and some energy goes into increasing value. Okay, so this term is no longer zero this term exists and work is done. And that's why p values or the heat capacity at constant pressure values are usually larger than constant valium hit capacity values.