You are asked to design a steel tank in which CO2 will be stored at 300 K. The tank is 30 ms and is needed to store 1200 kg of CO2. Use conmpressibility charts to determine the pressure exerted by the Co2. 100 090 O 80 070 100 060 050 040 00 02 03 04 05 06 Reduced pressure, R 07 08 09 10 5.0p 4.50 45 4.00 3.50 3.5 325 300 0.60 Compresoblity foclor, Zpv/RT

1. It is proposed to pump 10,000 kg/h of toluene at 114 °C and 1.1 atm absolute pressure from the reboiler of a distillation tower to a second distillation unit without cooling the toluene before it enters the pump.  If the frictional loss in the line between the reboiler and pump is 7 kN/m2 and the density of toluene is 866 kg/m3 , how far above the pump must the liquid level in the reboiler be maintained to give a net positive suction head of 2.5 m? The answer should be: 3.22 m 2. 2.A pump moves hot water condensate from a tank under vacuum (T = 180°F and p = ‐9.8 psig) to a vented tank at an elevation 40 ft above the pump.  The condensate level is 5 ft above the pump inlet, the vapor pressure of the condensate is 7 psia, and the head loss in the suction line is 2.3 ft.  If the minimum required NPSH is 9 ft, will the pump cavitate? (Please type answer no write by hend)

If I have gas at 1.0 atm of pressure and 30oC, what will I have to raise the temperature to in order to get 6.50 atm of pressure?

To find CP/CV of a gas, one sometimes uses the following method. A certain amount of gas with initial temperature T0, pressure P0, and volume V0 is heated by a current through a platinum wire for a time t. The experiment is done twice: first with a constant volume V0 with pressure changing from P0 to P1, and then at a constant pressure P0 with the volume changing from V0 to V1. The time t is the same in both experiments. Find the ratio CP/CV. The gas may be considered ideal.