Question 2: An adiabatic cylinder which contains an adiabatic frictionless piston is connected to A steam pressure line. State 1: The volume under the piston is V1=0.1m3, there is vacuum pressure. At a certain moment the valve opens and steam enters the cylinder. After that the valve closes, at this state the mass in the cylinder is m=6kg, pressure is P= 1.8mpa, temperature is T=500C. Ambiant temperature and pressure are given: P0=100kpa,T0=20C. a. Find the exergy of the tank at the initial state [K]. b. Find the exergy of the tank at the final state[K]]