Question

A reaction has both $\Delta H$ and $\Delta S$ negative. The rate of reaction:

• A. Increases with increase of temperature
• B. Increases with decrease of temperature
• C. Remains unaffected by change of temperature
• D. Cannot be predicted for change in temperature

Answer 1

The correct option is A Increases with increase of temperature

There is no relation between spontaneity and rate of reaction as rate of reaction is the measure of how fast is the product formed and spontaneity refers whether the reaction occurs with release of free energy which is set at the specified temperature.

spontaneity has no connection with speed of the reaction taking place.

although, in order to increase the rate of the reaction the temperature should be increased as it provides activation energy to the molecule for collision.