Question

What happens when a reversible reaction starts to take place in a closed system?

Select all that apply.

The rate of the forward reaction is at its maximum when the reaction first starts.

The rate of the forward reaction starts at zero and increases throughout the reaction.

The rate of the reverse reaction increases as the concentration of products increases

The reactions will continue until both reach a rate of zero and all chemical reactions stop.

The rate of the reverse reaction starts to decrease as the concentration of products increases.

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Answer 1

Step-by-step explanation:

To attain equilibrium, a reversible reaction always tries to stop when both backward and forward rate constants are equal.

A reversible reaction taking place in a closed system:

• The pressure will remain constant throughout the reaction.
• The volume of the reacting vessel or closed container will be fixed.

so from the given list of applicable changes:

1. The rate of the forward reaction is at its maximum when the reaction first starts.
2. The rate of the reverse reaction increases as the concentration of products increases
3. The reactions will continue until both reach a rate of zero and all chemical reactions stop.