Enthalpy change using Hess's Law Flashcards by bailey peart | Brainscape

Q

Q =

A

mc/\T

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Q

/\H=

A

Q/moles

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Q

why data book value for enthalpy different to calculated value? (4)

A

not standard conditions
bond energies in data book refer to gaseous states
energy given out when change of state
4 (sometimes) incomplete combustion

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