5) A cylinder contains 8.8 moles of ideal gas, initially at a temperature of 126C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 5.3 105 Pa on the gas. The gas is cooled until its temperature has decreased to 27C. For the gas C = 13.73 J/mol K. The gas constant is R = 8.314 J/mol K. Calculate: (a) the work W done by gas (b) the net change in the internal energy, AU, of the gas, and (c) the heat transfer Q. 5)