According to the ideal gas law (PV = nRT), at the same temperature (T) and volume (V), the pressure (P) of a gas is directly proportional to the number of moles (n) of gas present. Since there are 1 mole of hydrogen gas and 0.5 moles of oxygen gas, the pressure of hydrogen gas will be twice that of oxygen gas, resulting in unequal pressures in the two containers.
Liquid water can be separated into gas and oxygen gas through electrolysis. 1 mole of hydrogen gas and 0.5 moles of oxygen gas are produced from 1 mole of liquid water and are collected into separate containers of the same volume at the same temperature. Are the pressures of the gases equal? In one to two sentences, use the ideal gas law to explain your answer.
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