Four processes are shown in the following fi gure. Each process occurs in a well-insulated piston cylinder assembly and starts from the same initial state, state 1. Put the fi nal temperatures in order from highest to lowest. Explain. In Process A, a large block of mass, M, is removed from the piston. In Process B, an equivalent mass, M, is removed in incremental amounts. In Process C, a large block of mass, M, is placed on the piston. In Process D, an equivalent mass, M, is added in incremental amounts.

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Weightless, frictionless piston M T P State 1 Weightless, frictionless piston MT-M Palm om T P Patm Well Insulated State 1 Process A Well Insulated Patm Process B TA State A Weightless, frictionless piston M M MT=M atm CFD-W M TB State B T P State 1 Weightless, frictionless piston Patm am T P Patm Well Insulated State 1 Process Well Insulated M M Process D Tc State C Pam M TD Patm State D