enthalpy of reaction

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Tiffany Cao 1D
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enthalpy of reaction

Postby Tiffany Cao 1D » Sun Jan 21, 2018 2:37 pm

Can we assume that enthalpy of reaction(change in enthalpy) is the same as heat transferred(q)?

Rachel Formaker 1E
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Re: enthalpy of reaction

Postby Rachel Formaker 1E » Sun Jan 21, 2018 2:43 pm

If the reaction is conducted at constant pressure, then heat transferred (qp) will be equal to the enthalpy of the reaction (ΔH).

Enthalpy is specifically the heat released or absorbed at constant pressure, so make sure that pressure is constant (reaction is not in a bomb calorimeter) before assuming that the heat transfer is enthalpy.

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

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