Thermodynamics Question 83

Question: For a hypothetic reaction A→B , the activation energies for forward and backward reactions are 19 kJ/mole and 9 kJ/mole respectively. The heat of reaction is

[CBSE PMT 2000]

Options:

A) 28 kJ

B) 19 kJ

C) 10 kJ

D) 9 kJ

Show Answer

Answer:

Correct Answer: C

Solution:

ΔH=Ea for forward reaction −Ea for backward reaction =19−9=10kJ .

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