Question

Chemical equilibrium results if _____.

1. all reactants are used up
2. some products are removed
3. more reactants are added
4. forward reaction rate equals reverse reaction rate

Answer 1

chemical equilibrium results when the forward reaction rate is equal to the backwards reaction rate.......so the answer is 4

Answer 2

Option D, forward reaction rate equals reverse reaction rate

Step-by-step explanation:

When there is no observable change in any chemical reaction, then it is said that chemical equilibrium has reached.

At this stage the concentration of both the reactants and products is constant and hence forwards rate of reaction becomes equal to the backward reaction rate. There exists no observable change in the properties of the system and its components

hence, option D is correct