For A 2 + B 2 ⇌ 2 AB E a for forward and backward reaction are 180 and 200 kJ mol − 1 respectively If catalyst lowers E a for both reaction by 100 kJ mol − 1 . Which of the following statement

Question

For A 2 ​ + B 2 ​ ⇌ 2 AB E a ​ for forward and backward reaction are 180 and 200 kJ mol − 1 respectively If catalyst lowers E a ​ for both reaction by 100 kJ mol − 1 . Which of the following statement is correct?

TestHub · Accepted Answer

A 2 ​ + B 2 ​ ⇌ 2 AB E f ​ = 180 kJ mol − 1 E b ​ = 200 kJ mol − 1 Δ H = E f ​ − E b ​ = − 20 kJ mol − 1 In presence of catalyst : ​ E f ​ = 180 − 100 = 80 kJ mol − 1 E b ​ = 200 − 100 = 100 kJ mol − 1 ​ Catalyst does not change Δ H or Δ G of a reaction.

Chemistry - Chemical Kinetics Question with Solution | TestHub

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