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Ivanshal [37]
3 years ago
6

If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem, what would

be the final value for the enthalpy of reaction you use for this intermediate reaction? H2 + 0.5 O2 H2O, H = -286 kJ
Chemistry
2 answers:
Olin [163]3 years ago
4 0
When reversing a given reaction, we simply change the sign of the standard enthalpy change value. Therefore, the reaction will become:
H₂O → H₂ + 0.5O₂, ΔH = 286kJ
This is because if a certain amount of energy is released when a reaction occurs, the same amount of energy must be supplied for the reaction to occur in the reverse direction.
castortr0y [4]3 years ago
3 0

Answer:

<u>286 KJ</u> is the answer

Explanation:

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