9702/04/SP/22 · question 1 of 1 in this topic
Data for a nucleus and some particles are given in Table 9.1: ¹³⁹₅₇La 138.955 u; ¹₀n 1.00863 u; ¹₁p 1.00728 u; ⁰₋₁e 5.49 × 10⁻⁴ u.
One nuclear reaction that can take place in a nuclear reactor may be represented, in part, by the equation shown below. Complete the equation.
²³⁵₉₂U + ¹₀n → ⁹⁵₄₂Mo + ¹³⁹₅₇La + 2 ¹₀n + .................... + energy
Complete Fill in every gap. A partly completed answer usually scores partly.
Your answer
Suggested time: 2 min
Data for a nucleus and some particles: ¹³⁹₅₇La has mass 138.955 u; ¹₀n 1.00863 u; ¹₁p 1.00728 u; ⁰₋₁e 5.49 × 10⁻⁴ u. The energy equivalent to 1.00 u is 934 MeV.
Calculate the binding energy per nucleon, in MeV, of lanthanum-139 (¹³⁹₅₇La).
Calculate Show your working. The method can earn marks even when the final value is wrong, and a bare answer often cannot.
Your answer
Suggested time: 5 min
9702/04/SP/22Cambridge International AS & A Level Physics 9702 · Specimen 2022 · Paper 4 · sit the whole paper