Question

# Which of the following statements are in accordance with the Arrhenius equation? (a) Rate of a reaction increases with increase in temperature (b) Rate of a reaction increases with a decrease in activation energy (c) Rate constant decreases exponentially with an increase in temperature (d) Rate of reaction decreases with a decrease in activation energy

Solution

## Answers: (a) and (b). Arrhenius equation can be written as k=A.e−EaRT  k∝e−Ea i.e., rate of reaction increases with decrease in activation energy.  k∝e−1T k∝eT i.e., rate of reaction increases with increase in temperature.  The rate of reaction increases with temperature. It becomes double with every 10° change. It increases with a decrease in activation energy.

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