Question

Calculate the energy released in joules when 5 g of a material is completely converted into energy during a nuclear reaction.

Answer 1

Answer:

Energy released during a nuclear reaction = 4.5 × 10¹⁴J

Explanation:

As per the question,

Given mass of the material = 5g =0.005 kg

( 1 kg = 1000 g)

As we know that,

According to Einstein's relativity equation,

E = mc²

where,

c = Speed of light = 3 × 10⁸m/s

Now put the values in given equation,w we get

E = 0.005 × (3 x 108)²

E = 4.5 x 10¹⁴J

Hence, the energy released during a nuclear reaction = 4.5 × 10¹⁴J