The energy equivalent of 0.5 g of a substance is : | CGP Edu

Chemistry Chemical Thermodynamics Gibbs Free Energy Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

The energy equivalent of 0.5 g of a substance is :

A

1.5 x 10 13 J

B

0.5 x 10 13 J

C

4.5 x 10 16 J

D

4.5 x 10 13 J

Text Solution

Verified by Experts

The correct answer is:

According to mass-energy equivalence.

E = mc 2

= 0.5 x 10 -3 x (3 x 10 8 ) 2

= 4.5 x 10 13 J

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