3. (6 pts.) Two moles of CO2 initially at a temperature of 150 C is isothermally...

 

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3. (6 pts.) Two moles of CO2 initially at a temperature of 150 C is isothermally and reversibly compressed in a piston-cylinder assembly from 50 bars to 300 bars. a) Use the Z-chart to find the compressibility factor of CO before and after the compression (Zi and Z); b) Use the generalized chart of entropy departure to find the change of entropy (AS), and then use the difference form of entropy balance to determine the heat associated with the compression c) Use the generalized chart of enthalpy departure to find the change of enthalpy (AH), and then use the methods we discussed in the class to find the change of internal energy (AU). Finally, use the difference form of energy balance and the results of Part (b) to find the work required to compress the CO2. The critical temperature and pressure of CO2 are T-304 K and P. = 7.38 MPa. 3. (6 pts.) Two moles of CO2 initially at a temperature of 150 C is isothermally and reversibly compressed in a piston-cylinder assembly from 50 bars to 300 bars. a) Use the Z-chart to find the compressibility factor of CO before and after the compression (Zi and Z); b) Use the generalized chart of entropy departure to find the change of entropy (AS), and then use the difference form of entropy balance to determine the heat associated with the compression c) Use the generalized chart of enthalpy departure to find the change of enthalpy (AH), and then use the methods we discussed in the class to find the change of internal energy (AU). Finally, use the difference form of energy balance and the results of Part (b) to find the work required to compress the CO2. The critical temperature and pressure of CO2 are T-304 K and P. = 7.38 MPa.