The discussion revolves around the effect of temperature on the heat of combustion, exploring definitions and conditions under which heat of combustion is measured. Participants are examining the relationship between heat of combustion and enthalpy, as well as the implications of varying temperature and pressure on combustion reactions.
There appears to be disagreement among participants regarding the effect of temperature on heat of combustion, with some asserting it is constant at standard conditions while others argue it varies with temperature and pressure.
Participants reference standard conditions and the definitions of heat of combustion and enthalpy, but there are unresolved assumptions regarding the implications of temperature and pressure changes on combustion reactions.
Heats of reactions/combustions at other conditions are functions of T,P.DEvens said:Standard (my addt'n & emphasis) Heat of combustion is defined at standard conditions.
Heat of combustion is the difference in enthalpy between the products of the reaction and the reactants at a specified temperature and pressure. It refers to reactants in molar stoichiometric proportions producing products in stoichiometric molar proportions.kester said:Like in a topic. I just got this question and I am looking for some help.
I found this one http://wikieducator.org/The1stLawofThermodynamicsLesson5 I don't know, is the heat of combustion is the same as entalphy?