Calculate the energy equivalent of 1g of substance.

Explanation

Energy `E = 10^(-3) xx (3 xx 10^(8))^(2) J`
`E = 10^(-3) xx 9 xx 10^(16) = 9 xx 10^(13) J`
Thus, if one gram of matter is converted to energy, there is a release of enormous amount of energy.