Consider the endothermic reaction `XrarrY` with the activation energies `E_(b) and E_(f)` for backward and forward reaction respectively . In general.
A. `E_(b)ltE_(f)`
B. `E_(b)gtE_(f)`
C. `E_(b)=E_(f)`
D. there is no definite relation between `E_(f) and E_(b)`
