A drum of 200 L capacity fitted with a pressure gauge is partly filled with 80 L of an organic liquid and sealed. The pressure gauge then reads 740 mmHg at 25 °C. The drum is then accidentally dented and the capacity is reduced to 150 L. Given that the equilibrium vapour pressure of the organic liquid is 500 mmHg at 25 °C, calculate:
(a) the partial pressure of air in the drum after sealing, but before denting.
(b) the total pressure inside the dented drum.
(a) 240 mm of... View the full answer