Concept explainers
(a)
Interpretation:
The formula and molar mass of the hydrocarbon should be determined.
Concept introduction:
The complete combustion of hydrocarbons results in the formation of only carbon dioxide and water.
(b)
Interpretation:
The partial pressures in atmospheres of the reactants should be calculated.
Concept introduction:
Partial pressure is the pressure exerted by an individual gas in a mixture. Dalton’s law of partial pressures states that total pressure of mixture of gasses is equal to the sum of partial pressures of the gases in the mixture.
If partial pressure of gas A is PA, mole fraction is XA and total pressure is PT,
(c)
Interpretation:
The partial pressures in atmospheres of the products and the excess oxygen should be calculated.
Concept introduction:
Partial pressure is the pressure exerted by an individual gas in a mixture. Dalton’s law of partial pressures states that total pressure of mixture of gasses is equal to the sum of partial pressures of the gases in the mixture.
If partial pressure of gas A is PA, mole fraction is XA and total pressure is PT,
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