Question

The energy equivalent of 0.5 g of a substance is
(1) 0.5 x 1013 J
(2)4.5 x 1016 J
(3) 4.5 x 1013 J
(4) 1.5 x 1013 J​

Answer 1

Answer:

(2) Is the answer

Explanation:

The energy equivalent of the particular mass is given as:

E=mc

2

mass is given as =0.5g=0.5×10

−3

kg

and the speed of light (c)=3×10

8

m/s;.

So, E=0.5×10

−3

×(3×10

8

)

2

E=4.5×10

!3

J

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