Question

Energy released in the fission of a single ₉₂U²³⁵ nucleus is 200MeV. The fission rate of a ₉₂U²³⁵ fuelled reactor operating at a power level of 5W is-

• A. 1.56 × 10⁺¹⁰s^–1
• B. 1.56 × 10⁺¹¹s^–1
• C. 1.56 × 10⁺¹⁶s^–1
• D. 1.56 × 10⁺¹⁷s^–1

Answer 1

Answer: (B)

1.56 × 10⁺¹¹s^–1

Answer 2

Fission rate for 1 kW capacity power plant is

3.1 × 10¹³.1 kW = 3.1 × 10¹³/sec.

1 W = 3.1 × 10¹⁰/sec.

5W = 5 × 3.1 × 10¹⁰/sec.

= 1.56 × 10¹¹/sec.