The amount of hydrogen gas obtained by the electrolysis of water will be twice that of oxygen gas.
What does to mean?
Hydrogen gas is more or oxygen gas?

Open in App

Solution

The electrolysis of one mole of water produces one mole of hydrogen and Half mole of oxygen. All these numbers are moles or we can say volume.
H₂O ----> H₂ + 1/2 O₂
This means the volume occupied by hydrogen gas is twice of oxygen gas. Mass wise if you calculate you get 2 g of hydrogen and 16 g of oxygen.

Suggest Corrections

Similar questions

Q. Statement 1: During the electrolysis of water, the volume of gas obtained at anode is more than the volume of gas obtained at cathode.

Statement 2: Hydrogen is obtained at cathode and oxygen is obtained at anode during the electrolysis of water.

Q. Electrolysis of water to form hydrogen and oxygen gas is called __________.

Q. During the electrolysis of acidified water, where would oxygen and hydrogen gas be liberated?

Q. Water undergoes electrolysis to produce hydrogen and oxygen gas at

14^{0} C

, with the products collected above water. The vapor pressure of water at

14^{0} C

12 m m H g

. The total pressure is

740 m m H g

.
If the partial pressure of oxygen is

242.7 m m H g

, what is the mole fraction of hydrogen gas?

Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?

Join BYJU'S Learning Program

The amount of hydrogen gas obtained by the electrolysis of water will be twice that of oxygen gas. What does to mean? Hydrogen gas is more or oxygen gas?

The amount of hydrogen gas obtained by the electrolysis of water will be twice that of oxygen gas.
What does to mean?
Hydrogen gas is more or oxygen gas?