Question

A reaction has both $\Delta H$ and $\Delta S$ - ve. The rate of reaction

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

Answer 1

The correct option is B Increases with decrease in temperature

Generally, the rate of all reactions increases with an increase in temperature. It is given that this is an exothermic reaction, and on decreasing the temperature, the rate constant value increases for such reactions. This way, on lowering the temperature it is possible for this reaction rate to increase.