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Question:

According to the Arrhenius equation, Rate constant increases with increase in temperature. This is due to a greater number of collisions whose energy exceeds the activation energy. A high activation energy usually implies a fast reaction. Higher the magnitude of activation energy, stronger is the temperature dependence of the rate constant. The pre-exponential factor is a measure of the rate at which collisions occur, irrespective of their energy.

Rate constant increases with increase in temperature. This is due to a greater number of collisions whose energy exceeds the activation energy.

A high activation energy usually implies a fast reaction.

The pre-exponential factor is a measure of the rate at which collisions occur, irrespective of their energy.

Higher the magnitude of activation energy, stronger is the temperature dependence of the rate constant

Solution:

The correct options are
B Rate constant increases with increase in temperature. This is due to a greater number of collisions whose energy exceeds the activation energy.
C Higher the magnitude of activation energy, stronger is the temperature dependence of the rate constant
D The pre-exponential factor is a measure of the rate at which collisions occur, irrespective of their energy.
According to Arrhenius Equation
K=Ae⁻Ea/RT