Physics

Physics

Problem

A power plant must supply

1.0\times10^{15}\,\text{J}

of thermal energy using fission of

^{235}\text{U}

. Taking the energy per fission as

200\,\text{MeV}

, Avogadro constant

N_A=6.02\times10^{23}\,\text{mol}^{-1}

and atomic mass unit

1\,\text{u}=1.66\times10^{-27}\,\text{kg}

, the mass of

^{235}\text{U}

consumed is nearest to a)

48\,\text{kg}

b)

1.2\,\text{kg}

c)

12\,\text{kg}

d)

120\,\text{kg}

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