Chemistry 0620 · IGCSE · Fuels

Fuels — practice question

The equation represents the complete combustion of propane. $\text{C}_3\text{H}_8(g) + 5\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 4\text{H}_2\text{O}(l)$ Which of the following statements is correct?

  • A$10\,\text{cm}^3$ of propane cannot burn if less than $50\,\text{cm}^3$ of oxygen is present.
  • B$10\,\text{cm}^3$ of propane would produce $40\,\text{cm}^3$ of liquid water.
  • C$100\,\text{cm}^3$ of oxygen would be sufficient to react completely with $20\,\text{cm}^3$ of propane.
  • DThis reaction would result in an increase in the volume of gas.

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