Question

Given equal masses of dihydrogen, and other gases, which gas will exert MORE pressure?

Answer 1

If there are equal masses of gases, dihydrogen will exert more pressure.........

Explanation:

If there are equal numbers of molecules, then dihydrogen and dioxygen will exert the SAME PRESSURES.............

Pressure is a state function of temperature, and of the number of gaseous molecules...........this can be appreciated by the Ideal Gas equation, `PV=nRT`. To a first approx., if there are equal numbers of molecules, and an equal temperature, these gases will exert the same pressure.