Physics 0625 · IGCSE · Transfer of thermal energy

Transfer of thermal energy — practice question

A $5.0\,\text{g}$ sample of water at $25\,^{\circ}\text{C}$ is placed on a large block of ice at $0\,^{\circ}\text{C}$. The water reaches $0\,^{\circ}\text{C}$, and part of the ice turns to water. Take the energy lost by the water to be the same as the energy gained by the ice. Determine the mass of ice that melts. The specific heat capacity of water is $4.2\,\text{J}\,(\text{g}^{-1}\,^{\circ}\text{C}^{-1})$. The specific latent heat of fusion of ice is $340\,\text{J g}^{-1}$.

  • A$0.062\,\text{g}$
  • B$0.087\,\text{g}$
  • C$1.5\,\text{g}$
  • D$10\,\text{g}$

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