Gas contained in a piston-cylinder assembly undergoes a polytropic process for which the relation between pressure and volume is given by p∀ n = constant. the initial volume is 0.04 m3 and the initial pressure is 2 bar. the final volume of the gas is 0.1 m3 , for each of the following cases, determine the final pressure [bar] and the work for the process [kj]. show integration for each case. a. n = 0, b. n = 1, c. n = 1.4.