Two kilograms CO2 gas was confined in a piston-cylinder assembly at a pressure of 6 bar and a temperature of 303 K. The piston has a mass of 480 kg and the surface area of 1 m2. The movement between piston and walls of cylinder causes friction and it cannot be ignored. The atmospheric pressure is 1.01325 bar. The gas is allowed to expand by releasing the piston. The expansion is arrested when the volume is double the original volume. Given: R=8.314J K-1 mol-1. (i) Calculate the Work done by the gas to its surrounding? (ii) Discuss whether the above process is reversible or irreversible?

Two kilograms CO2 gas was confined in a piston-cylinder assembly at a pressure of 6 bar and a temperature of 303 K. The piston has a mass of 480 kg and the surface area of 1 m2. The movement between piston and walls of cylinder causes friction and it cannot be ignored. The atmospheric pressure is 1.01325 bar. The gas is allowed to expand by releasing the piston. The expansion is arrested when the volume is double the original volume. Given: R=8.314J K-1 mol-1. (i) Calculate the Work done by the gas to its surrounding? (ii) Discuss whether the above process is reversible or irreversible?