Chemistry 9701 · AS & A Level · 3.1

3.1 — practice question

When $0.47\,\text{g}$ of a hydrocarbon is burned completely in air, the energy given out raises the temperature of $200\,\text{g}$ of water from $23.7^{\circ}\text{C}$ up to $41.0^{\circ}\text{C}$. Calculate the amount of energy absorbed, in Joules, by the water?

  • A$0.47 \times 4.18 \times 17.3$
  • B$0.47 \times 4.18 \times (273 + 17.3)$
  • C$200 \times 4.18 \times 17.3$
  • D$200 \times 4.18 \times (273 + 17.3)$

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