Question

(a) Rate constant of chemical reaction rises to double by increase in temperature of 10°C. Explain with labelled distribution curve.

(b) The rate constant of first order reaction increases four times when the temperature changes from 350K to 400K. Calculate the energy of activation of the reaction assuming that it does not change with temperature.

(R = 8.314JK–1 mol–1, log4 = 0.6021)

Answer 1

When we increase temperature the energy of molecules increase and graph shifts in the forward direction as total number of molecules are same and the peak decreases