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Card 1 of 22

If every coefficient in a balanced thermochemical equation is doubled, what happens to ΔH?

A

ΔH halves, because twice as many moles share the energy released.

B

ΔH quadruples, because every coefficient is multiplied by two.

C

ΔH doubles, because it is per mole of reaction as written.

D

ΔH stays unchanged, because it is independent of the equation as written.

Card 1 of 22

Applications of Hess's law Flashcards

  1. A Level
  2. /Chemistry
  3. /Applications of Hess's law

22 flashcards on AQA A Level Chemistry Applications of Hess's law: the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards