Question

Consider the following energy diagram.

How much is the activation energy?

2.4 kcal/mole
14.4 kcal/mole
43.8 kcal/mole

Answer 1

The activation anergy is calculated as follows.
The total energy absorbed-the final energy change.
43.8kcal/mol-2.4kcal/mol=41.4kcal/mol

Answer 2

43.8 kcal/mole

Step-by-step explanation:

Activation energy is the minimum energy required by the reactants to form the activated complex, the activated complex then gets converted to products. According to the given graph the reactants required 43.8 kcal of energy to form the activated complex.The lower the activation energy the faster the reactants will get converted to products and vice versa.