The change in mass of fuel during a nuclear reaction is 2.0 x 10-27 kg. Calculate the amount of energy released. (Speed of light = 2.0 x 108ms-1)

A.

1.8 x 10-10J

B.

9.0 x 10-11J

C.

6.0 x 10-19J

D.

1.2 x 10-45J

View answer & explanation

Correct answer is A

Q = \(\Delta MC^2\)

= 2 x 10-27(3 x 10)2

= 1.8 x 10-10J

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