For an endothermic reaction, where `Delta H` represents the enthalpy of reaction in `kJ mol^(-1)`, the minimum value for the energy of activation will be

Options

A. equal to `Delta_(r)H^(@)`
B. more than `Delta_(r)H^(@)`
C. less than `Delta_(r)H^(@)`
D. zero

Answer

B

Explanation

A potential energy diagram of a reaction that absorbs energy (endothermic) is

Note that potential energy of activated comples should be at least just above the potential energy of products.