Gọi công thức hidrocacbon là CxHy
CxHy+(x+\(\dfrac{y}{4}\))O2\(\overset{t^0}{\rightarrow}\)xCO2+\(\dfrac{y}{2}H_2O\)
x=\(\dfrac{n_{CO_2}}{n_{C_xH_y}}=4\)
\(x+\dfrac{y}{4}=\dfrac{n_{O_2}}{n_{C_xH_y}}=6\rightarrow4+\dfrac{y}{4}=6\rightarrow y=8\)
CTPT: C4H8