In a reversible reaction, the energy of activation of the forward reaction is 50 $$kcal.$$ The energy of activation for the reverse reaction will be
A.
< 50$$\,kcal$$
B.
50$$\,kcal$$
C.
either greater than or less than 50 $$kcal$$
D.
> 50$$\,kcal$$
Answer :
either greater than or less than 50 $$kcal$$
Solution :
The activation energy of a reverse reaction decide whether the given reaction is exothermic or endothermic, so, the energy of activation of reverse reaction is either greater or less than 50 $$kcal.$$ In case of exothermic reaction, the activation energy for reverse reaction is more than activation energy of the forward reaction and in case of endothermic reaction, the activation energy for reverse reaction is less than activation energy of the forward reaction.
Releted MCQ Question on Physical Chemistry >> Chemical Kinetics
Releted Question 1
If uranium (mass number 238 and atomic number 92) emits an $$\alpha $$ -particle, the product has mass no. and atomic no.