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The complete combustion of butane, (g) is represented by the equation

C4H10+13/2O2->4CO2+5H20
STANDARD ENTHALPY IS -2877KJ/MOL

How much heat, in kilojoules, is evolved in the complete combustion of
12.8L C4H10 at 23.8degrees celsius and 744mmhg ?

1 answer

Use Pv=nRT to find thenumber ofmoles of butane, then multiply that by the standard enthalpy per mole.
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