How much mass defect is required to release 5.5 x 1020 J of energy?

Question

asked Sep 5, 2020 187k views

1 Answer

Srdjan Grubor · Answer 1 · 2020-09-11T09:28:29+0000

Answer : The mass defect required to release energy is 6111.111 kg

Explanation :

To calculate the mass defect for given energy released, we use Einstein's equation:

$E=\Delta mc^2$

E = Energy released =
5.5* 10^(20)J

$\Delta m$ = mass change = ?

c = speed of light =
3* 10^8m/s

Now put all the given values in above equation, we get:

$5.5* 10^(20)Kgm^2/s^2=\Delta m* (3* 10^8m/s)^2$

$\Delta m=6111.111kg$

Therefore, the mass defect required to release energy is 6111.111 kg