A rigid 5.00 L cylinder contains 28.0 g of O2(g) and 38.5 g of CO2(g) (a) Calculate the total pressure, in atm, of the gas mixture in the cylinder at 298 K.
(b) The temperature of the gas mixture in the cylinder is decreased to 280 K Calculate each of the following.
(i) The mole fraction of O2(g) in the cylinder
(ii) The partial pressure, in atm, of O2(g) in the cylinder