Question 4 (20 Points): Five moles of ideal gas are adiabatically contained at 20 atm pressure and 300K. As

shown in the below pressure-volume diagram, the pressure of the gas is suddenly released to 4 atm in going from

State 1 to State 2. And then, the gas undergoes an irreversible expansion in going from State 2 to State 3.

Calculate the entropy change for the gas which goes from Statel to State 3 directly, assuming the molar heat

Question 4 (20 Points): Five moles of ideal gas are adiabatically contained at 20 atm pressure and 300K. As shown in the below pressure-volume diagram, the pressure of the gas is suddenly released to 4 atm in going from State / to State 2. And then, the gas undergoes an irreversible expansion in going from State 2 to State 3. Calculate the entropy change for the gas which goes from Statel to State 3 directly, assuming the molar heat capacity of the ideal gas C -1.5R. 20 am 300 K isotherm Pressure 236K isotherm 4 am 158 Kisotherm Volume