Which of the following values of heat of formation indicates that the product is least stable?

- 393.5 K J

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- 972.7 K J

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+ 89.9 K J

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+ 272.2 K J

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Solution

The correct option is B $+ 272.2 K J$
The compound which has the less energy are more stable.
So the reaction in which the maximum heat evolved is most stable and the reaction in which maximum heat is absorbed is least stable.

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Similar questions

Δ H^{o}

K

C_{(g r a p h i t e)}

- 393.5 k J

{m o l}^{- 1}

{C O}_{2}

k J {m o l}^{- 1}

C O_{2}

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