The rate of reaction is doubled when the temperature changes from `27^@C` to `37^@C`. Calculate the energy of activation.

The rate of a reaction becomes four times when the temperature changes from 293 K to 313 K. Calculate the energy of the activation (E_a) of the reaction assuming that it does not change with temperature. [R=8.314" JK"^(-1)" mol"^(-1), log 4 = 0.6021]

The rate of most reactions become double when their temperature is raised from 298 K to 308 K. Calculate their activation energy. (Given, R = 8.314" J mol"^(-1) )

The rate of a particular reaction triples when temperature changes from 60°C to 100°C. Calculate the activation energy of the reaction.

The specific rate constant for a reaction increases by a factor if the temperature is changed from 27^(@) C to 47^(@) C. Find the activation energy for the reaction. (R = 198 cal )

The rate of reaction is doubled for every 10^@C rise in temperature. If the temp is raised from 30^@C to 70^@C the rate of reaction will be increased by how many times ?

The rate constant for the first order reaction becomes six times when the temperature is raised from 350K to 400K. Calculate the activation energy. R = 8.314 JK^(-1) mol^ (- 1) .

A 75 gm block of copper taken from a furnace is dropped into a 300 gm glass beaker containing 200 gm of water. The temperature of water rises from 12^@C to 27^@C . Calculate the temperature of furnace.