If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container then with the passage of time rate of?

The forward reaction increases

Both forward and reverse reaction remains unaffected

The reverse reaction decreases

The forward reaction decreases

Explanation

If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container, then with time, the forward reaction decreases

Because as the reaction proceeds, the concentration of hydrogen and iodine decreases, leading to a slower rate of forward reaction, while the reverse reaction starts to increase until equilibrium is reached.