An exothermic reaction A→B has an activation energy of 17kJ per mole of A. The heat of the reaction is 40kJ. Calculate the activation energy for the reverse reaction B→A.
A
60kJ
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B
57kJ
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C
75kJ
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D
90kJ
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Solution
The correct option is B57kJ Exothermic reaction According to graph, E1(b)=Ea(f)+ΔH =17+40