Question

What happens to the rate of a reaction as the reaction progresses?

O A. The rate increases as products are formed.
O B. The rate stays constant throughout the reaction.
O C. The rate is constant until it suddenly drops to zero.
O D. The rate decreases as reactants are used up.

Answer 1

D. The rate decreases as reactants are used up.

Step-by-step explanation:

Initially, the rate increases until the reaction is at equilibrium. At equilibrium, the rate is constant.

As the reaction progresses, the rate decreases to zero when reactants are used up ( for irriversible reactions only )