Question

# What are the values of $∆\mathrm{H}$ for endothermic and exothermic reactions?

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Solution

## Exothermic and Endothermic reactions:The reaction in which the heat is released is known as an Exothermic reaction.The reaction in which the heat is absorbed is known as an Endothermic reaction.Change in Enthalpy:“$\mathrm{H}$ (Enthalpy) is a state function because it depends on $\mathrm{U},\mathrm{P},\mathrm{and}\mathrm{V}$ all of which are state functions”. Thus, $∆\mathrm{H}$ is independent of the path."$∆\mathrm{H}$ is negative for exothermic reactions which liberate heat during the reaction and $∆\mathrm{H}$ is positive for endothermic reactions which absorb heat from the surroundings".

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