2. The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is
Correct Answer: A catalyst lowers the activation energy of the reacting molecules.
4. What is the order of a chemical reaction, , if the rate of formation of 'C', increases by a factor of 2.82 on doubling the concentration of 'A' and increases by a factor of 9 on trebling the concentration of 'B'?
7. If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is