Question

Use the chemical reaction to answer the question.

CH4(g) + H2O(g) + energy ⇄ CO(g) + H2(g)

Which statement best describes the effect of adding more steam to the system?

(1 point)

Adding steam allows more molecules of the products to collide, causing the rate of the forward reaction to increase.

Adding steam allows more molecules of the reactants to collide, causing the rate of the reverse reaction to increase.

Adding steam allows more molecules of the products to collide, causing the rate of the reverse reaction to increase.

Adding steam allows more molecules of the reactants to collide, causing the rate of the forward reaction to increase.

Answer 1

Adding steam allows more molecules of the reactants to collide, causing the rate of the forward reaction to increase.

Reason: H2O is a reactant, so increasing its concentration increases reactant collision frequency and drives the forward (left→right) reaction toward more CO and H2.