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A level - Chemistry - Practicals > Enthalpy change using Hess's Law > Flashcards

Enthalpy change using Hess's Law Flashcards

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1
Q

Q =

A

mc/\T

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2
Q

/\H=

A

Q/moles

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3
Q

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

A
  1. not standard conditions
  2. bond energies in data book refer to gaseous states
  3. energy given out when change of state
    4 (sometimes) incomplete combustion
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A level - Chemistry - Practicals (7 decks)

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