Chemistry 9701 · AS & A Level · 1.1

1.1 — practice question

In an experiment, $1.60\,\mathrm{g}$ of a fuel is burnt. $45.0\%$ of the energy given out is absorbed by $200\,\mathrm{g}$ of water. The temperature of the water increases from $18.0\,^{\circ}\mathrm{C}$ to $66.0\,^{\circ}\mathrm{C}$. What is the total energy released per gram of fuel burnt?

  • A$25\,100\,\mathrm{J}$
  • B$55\,700\,\mathrm{J}$
  • C$89\,200\,\mathrm{J}$
  • D$143\,000\,\mathrm{J}$

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