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The enthalpy of formation, ∆Hf˚, equals zero at 25 °C for which of the following in their standard states?

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The enthalpy of formation, ∆Hf˚, equals zero at 25 °C for which of the following in their standard states?

Post  JasonGHerbalExt on Tue Jan 27, 2015 12:33 am

The enthalpy of formation, ∆Hf˚, equals zero at 25 °C for which of the following in their standard states?

(A) elements (B) compounds
(C) gases (D) solids

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Standard Heat of Formation

Post  DrPelezo on Fri May 22, 2015 5:58 pm

Have you studied the definition of Standard Heat of Formation? If you know what that is, this question is very easy. Doc

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