In nuclear fission, 0.1 % mass is converted into energy. The energy released by the fission of 1 kg mass is:

Question

In nuclear fission, 0.1 % mass is converted into energy. The energy released by the fission of 1 kg mass is: (A) 2.5 × 107 kWh (B)  2.5 × 103 kWh  (C)  2.5 × 106 kWh  (D)  2× 108 kWh

Tardigrade Admin · Accepted Answer

Δ E=m c2 Δ E=(0.1/100) × 9 × 1016 J =(9 × 1013/36 × 105) kWh =2.5 × 107 kWh

Q. In nuclear fission, $0.1%$ mass is converted into energy. The energy released by the fission of $1 k g$ mass is:

$2.5 \times 1 0^{7} kWh$

$2.5 \times 1 0^{3} kWh$

$2.5 \times 1 0^{6} kWh$

$2 \times 1 0^{8} kWh$

$Δ E = m c^{2}$
$Δ E = \frac{0.1}{100} \times 9 \times 1 0^{16} J$
$= \frac{9 \times 1 0 ^{13}}{36 \times 1 0 ^{5}} kWh$
$= 2.5 \times 1 0^{7} kWh$

Q. In nuclear fission, 0.1% mass is converted into energy. The energy released by the fission of 1kg mass is:

2.5×107kWh

2.5×103kWh

2.5×106kWh

2×108kWh