Q .     For the equilibrim `A(g) ⇋ B(g), \triangle H - 40` kJ/mol. If the ratio of the activation energies of the forward `(E_f)` and reverse `(E_b)` reaction is `\frac{2}{3}` then

JEE 2015 Mains 11 April
A

`E_f = 30\ kJ// mol; E_b = 70\ kJ// mol`

B

`E_f = 70\ kJ// mol; E_b = 30\ kJ// mol`

C

`E_f = 80\, kJ// mol; E_b = 120\ kJ// mol`

D

`E_f = 60\ kJ// mol; E_b = 100\ kJ// mol`

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