Question

The hydrogenation of Ethyne is carried out at 600 K. The same reaction when carried out in the presence of a catalyst maintaining the same rate constant, the temperature required is only 400 K. If the catalyst lowers the Activation energy of the reaction by 20 kJ/mol, what is the value of \( E_a \)?

• A. 60 kJ/mol
• B. 100 kJ/mol
• C. 50 kJ/mol
• D. 80 kJ/mol

Hint:

When the rate constant is constant, the change in temperature affects the activation energy. Use the Arrhenius equation to calculate the change in activation energy for different temperatures.

Answer 1

The Correct Option is A