On increasing temperature, activation energy for a reaction decrease. Why?

Assertion: A catalyst increases the rate of a reaction. Reason: In presence of a catalyst, the activation energy of the reaction decreases.

At 227^(@)C , the presence of catalyst causes the activation energy of a reaction to decrease by 4.606 K cal. The rate of the reaction will be increased by : -

At 227^(@)C , the presence of catalyst causes the activation energy of a reaction to decrease by 4.606 K cal. The rate of the reaction will be increased by : -

Assertion: A catalyst increases the rate of a reaction. Reason: In presence of a catalyst, the activation energy of the reaction decreases.

Assertion : Surface tensian decreases with increase in temperature. Reason : On increasing temperature kinetio energy increases and intermolecular forces decreases.

Assertion : Surface tensian decreases with increase in temperature. Reason : On increasing temperature kinetio energy increases and intermolecular forces decreases.

Assertion : Surface tension decreases with increase in temperature . Reason : On increasing temperature kinetic energy increases and intermolecular forces decreases .

What will happen, on increasing the temperature or decreasing the activation energy (answer on the basis of Arrhenius equation)?