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Fuels and heats of R
LC chemistry
Term | Definition |
---|---|
Hydrocarbon | compounds consisting of carbon and hydrogen only, bonded covalently |
Homologous series | family of organic compounds with the same general formula, similar chemical properties and successive members differ by CH2 |
Saturated | molecules that contain only single bonds |
structural isomers | compounds that have the same molecular formula but different structural formulas |
unsaturated | molecules that contain double or triple bonds |
exothermic | a reaction in which heat is given out |
endothermic | a reaction in which heat is taken in |
Heat of reaction | the heat in kilojoules released or absorbed when the number of moles of reactants in the balanced equation react completely |
Bond energy | |
heat of combustion | |
kilogram calorific value | |
heat of formation | |
law of conservation of energy | |
Hess's law | |
autoignition | is ignition in an internal combustion engine before a spark is produced |
octane number | measure of the tendancy of a fuel to autoignite |