In a hypothetical reaction `X to Y`, the activation energy for the forward backward reactions are 15 and 9 kJ `mol^(-1)` respectively. The potential energy of X is 10 kJ `mol^(-1)`. Which of the following statement is/are correct?
(i) The threshold energy of the reaction is 25 kJ `mol^(-1)`
(ii) The potential energy of Y is 16 kJ `mol^(-1)`
(iii) Heat of reaction is 6 kJ `mol^(-1)`
The reaction is endothermic.
A. Only (i)
B. Only (i) and (ii)
C. Only (ii) and (iii)
D. All are correct
