Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

A sample of 200 g of water is initially at $25\degree\text{C}$. It is then warmed to $75\degree\text{C}$ by burning 2 g of ethanol. What is the amount of energy transferred to the water?

  • A$0.418\text{ kJ}$
  • B$10.4\text{ kJ}$
  • C$41.8\text{ kJ}$
  • D$62.7\text{ kJ}$

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