Which of the following relations are correct if `Delta H` represents only magnitude ?

Options

A. a. Exothermic reactions: `E_(a(f)) + Delta H = E_(a(b))`
B. b. Endothermic reactions: `E_(a(f)) = E_(a(b)) + Delta H`
C. c. Exothermic reactions: `Delta H gt E_(a)`
D. d. Exothermic reactions: `Delta H lt E_(a)`

Answer

A, B, D

Explanation

For any reaction, `Delta H =E_(a(f)) - E_(a(b))`
Also, for exothermic reaction `Delta H ge E_(a)`