Prepare P&I diagrams for following cases (a) Hydrogen from a bullet at 10 bar g and 40C is let down to 2 bar g for feeding to edible hydrogenation reactor. (b) Carbon dioxide is to be cooled from 110C to 40C using cooling water in an intercooler at 68 bar a. Cooling water is supplied at 32C. Critical pressure and critical temperature of carbon dioxide are 73.77 bar and 31C, respectively