4. (20pts) Answer the following questions briefly. a. (10 pts) Compare the temperature increases (T) of a perfect gas after applying same heat at constant V versus at constant p. Explain why it is. b. ( 10pts) When compressing a perfect gas from V1 to V2, there are two processes you can choose; reversible isothermal process and reversible adiabatic process. In which process, do you need LESS work? Use the pV diagram and explain why it is