prove that cp-cv=R? Share with your friends Share 2 Hansraj Rai answered this Please refer the following link: https://www.meritnation.com/ask-answer/question/define-the-two-principles-specific-heat-of-a-gas-and-derive/thermal-properties-of-matter/1564342 4 View Full Answer Janani Janarthanam answered this delta u= qv =cv delta tdelta h=qp=cp delta tdelta h=delta u+delta(pv)=delta u+delta(rt)=delta u+r delta tapplying values in the equationdelta h=delta u+ r delta tcp delta t=cv delta t+r delta tdividing the eqn by delta tcp=cv+rcp-cv=r 6