Question

49 please

- In 1989, researchers claimed to have achieved an electrochennical cell at room temperature. Their now discredited claim was that a power output of 4.00 W was produced by deuterium fusion reactions in the palladium electrode of their apparatus. The two most likely reactions are and ? the deuterium nuclei that partopated in the e reactos, a. sume half of the deuterium nuclei participated in the first reaction and the other half participated in the second reaction How many neutrons per second would we expect to be emited in the gometa ticn of 400 W of power? A fusion reactoe that uses only deuterium for fuel would have the two mactions in Problem 45 taking place in the machor another H in the reaction ?+91-He + n + 17.6 MeV The ratio of H to H atoms in naturally occurring hydrogm 1.5×10. How much energy would be producedfrom 40Ld

Answer 1

Density of water 1kg/l is 1 litre of water = > 1 kg of H_2O molecule = 1kg/18gm of moles = 1kg/18gm times (6.023 times 10^23)H_2O Now, NH_2/NH_1 = 1.5 times 10^-4 Therefore NH_2 = (1/1.5 times 10^-4 + 1) times N_H_2O NH_2 = 5 times 10^21 Now, 2_H + 2_H rightarrow ^3Hl + M + 3.27 MeV (since 22HL = 3.27 Mev) 2_H + 2_H rightarrow 3_H + ^'H + 4.03 Mev downarrow^2H 4Hl + M + 17.6 Mev (32H Molecules Delta E = 21.63 Mev) Assuming, 1/2 NH^2 undergoes first reaction and the rest undergoes second reaction, Delta E_tot = 1/2 NH^2 (3.27 + 21.63) MeV = 6.225 times 10^22 MeV