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Question

For an exothermic reaction, ΔH is__.

A
+ve.
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B
ve
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C
0
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D
none
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Solution

The correct option is A +ve.
In an exothermic reaction, the total energy of the products is less than the total energy of the reactants. Therefore, the change in enthalpy is negative, and heat is released to the surroundings.
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