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Enthalpy of combustion as always ________

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in Chemistry – Class 11 by (148k points)
Enthalpy of combustion as always ________

(a) positive

(b) negative

(c) 0

(d) infinity

I had been asked this question in my homework.

I would like to ask this question from Thermodynamics topic in portion Thermodynamics of Chemistry – Class 11

1 Answer

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Right option is (b) negative

The explanation: Enthalpy of combustion is the enthalpy change that takes place when one mole of a compound undergoes complete combustion in the presence of oxygen. It is represented by ΔHc, it is always negative because the process of combustion is exothermic.

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