A standard internal combustion engine burns liquid octane (C8H18C_8H_{18}C8H18) as a fuel. Under restricted air flow conditions, the fuel undergoes incomplete combustion such that the molar ratio of carbon monoxide (COCOCO) to carbon dioxide (CO2CO_2CO2) in the dry exhaust gas is 1:31:31:3, with no unburnt carbon (soot) remaining.
What is the volume of oxygen gas, measured at room temperature and pressure (RTP, where the molar volume of gas is 24 dm3 mol-1), required for the incomplete combustion of exactly 1.00 mol of octane?
300 dm3300\text{ dm}^3300 dm3
228 dm3228\text{ dm}^3228 dm3
552 dm3552\text{ dm}^3552 dm3
276 dm3276\text{ dm}^3276 dm3
Practise Edexcel GCSE Chemistry Fuels with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.