Three (3) moles of an ideal gas at 298 K is held inside a 2 cm diameter vertical cylinder by a free-floating weight of mass 10 kg. The pressure outside the cylinder is 10 bar. How much heat must be added to double the volume of the cylinder through a reversible process? What is the final pressure of the gas? Assume that Cv = (3/2)R, Cp = (5/2)R