Question

For the reaction, A⇌B, Ea = 50kJ mol-1 and ΔH = -20 kJ mol-1. When a catalyst is added, Ea decreases by 10kJmol-1. What is the Ea for the backward reaction in the presence of catalyst?

• A. 60kJ mol-1
• B. 40kJ mol-1
• C. 70kJ mol-1
• D. 20kJ mol-1

Answer 1

Answer: (A)

60kJ mol-1

Answer 2

The correct answer is Option (A) : 50kJ mol-1