According to the ideal gas law (PV = nRT), for equal volumes and pressures, the temperature of a gas is directly proportional to the number of moles of gas present. Since there is 1 mole of hydrogen and 0.5 moles of oxygen in separate 10 L containers at the same pressure, the temperature of the hydrogen gas will be higher than that of the oxygen gas because it has more moles of gas, leading to a higher temperature under the same conditions.
Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. 1 mole of hydrogen gas and 0.5 moles of oxygen gas is produced from 1 mole of liquid water collected in separate 10 L containers at 1 atm. Will the temperatures of the gases be equal? In one to two sentences, use the ideal gas law to explain your answer.
1 answer