Question

The potential energy diagram for a reaction $R\to P$ is given below
$△H^{\circ }$ of the reaction corresponds to the energy

• A. $a$
• B. $b$
• C. $c$
• D. $a+b$

Answer 1

Answer: (C)

$c$

From given figure,

Activation energy of forward reaction $=a$.
Activation energy of backward reaction $=b$.
$\therefore △H=b-a=c$

Hence, option C is correct