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Course: AP®︎/College Chemistry > Unit 6

Lesson 7: Enthalpy of formation

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Enthalpy of formation

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OF_{2} (g) + H_{2} O (g) \to O_{2} (g) + 2 HF (g)

The standard enthalpy change for the reaction represented above is

Δ H_{1}

. The standard enthalpies of formation for

H_{2} O (g)

and

HF (g)

are

Δ H_{2}

and

Δ H_{3}

, respectively.

Which of the following expressions is equivalent to the standard enthalpy of formation for $OF_{2} (g)$ ‍?

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Video 9 minutes 25 seconds

Enthalpy of formation