In the combustion of hexane (a low-boiling component of gasoline), 2 C6 H14(g)+19 O2(g) ⟶12 CO2(

step 1 So in this question, if you look at the balanced chemical reaction, we can write the relative ra

In the combustion of hexane (a low-boiling component of...

In the combustion of hexane (a low-boiling component of gasoline), $$2 \mathrm{C}_{6} \mathrm{H}_{14}(g)+19 \mathrm{O}_{2}(g) \longrightarrow 12 \mathrm{CO}_{2}(g)+14 \mathrm{H}_{2} \mathrm{O}(g)$$ it was found that the rate of reaction of $\mathrm{C}_{6} \mathrm{H}_{14}$ was $1.20 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$ (a) What was the rate of reaction of $\mathrm{O}_{2} ?$ (b) What was the rate of formation of $\mathrm{CO}_{2} ?$ (c) What was the rate of formation of $\mathrm{H}_{2} \mathrm{O}$ ?

In the combustion of hexane (a low-boiling component of gasoline),
$$2 \mathrm{C}_{6} \mathrm{H}_{14}(g)+19 \mathrm{O}_{2}(g) \longrightarrow 12 \mathrm{CO}_{2}(g)+14 \mathrm{H}_{2} \mathrm{O}(g)$$
it was found that the rate of reaction of $\mathrm{C}_{6} \mathrm{H}_{14}$ was $1.20 \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$
(a) What was the rate of reaction of $\mathrm{O}_{2} ?$
(b) What was the rate of formation of $\mathrm{CO}_{2} ?$
(c) What was the rate of formation of $\mathrm{H}_{2} \mathrm{O}$ ?

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Key Concepts

Reaction Rate

The reaction rate describes how fast reactants are consumed or products are formed, generally expressed as the change in concentration per unit time (e.g., mol L?¹ s?¹). This concept is central in chemical kinetics and is used to quantify the speed of chemical processes.

Stoichiometry in Reaction Rates

Stoichiometry involves the balanced relationship between reactants and products in a chemical equation. The stoichiometric coefficients indicate the proportional changes in the concentrations of different species, and they must be taken into account when relating the rate of change of one species to another.

Calculating Individual Species Rates

To determine the rate for a specific species, the overall reaction rate is adjusted by the stoichiometric coefficient for that species. This means the rate of consumption or formation of each component is computed as the product of the overall rate and the ratio of its coefficient relative to the rate given for another species.

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