Standard heat of formation

The standard heat of formation is a kind of heat of reaction.^[1] It means the heat gotten rid of or pulled in when 1 mole of a compound is made from elements when its on standard conditions.^[1] The sign for standard heat of formation is ΔH°f, where the subscript means formation.^[1] The elements make the compound while they are in their stable times. For instance, oxygen would be gas, and iron would be solid during these times.^[1]

Standard Heat Of Formation Media

Standard enthalpy change of formation in Born–Haber diagram for lithium fluoride. $Δ latt H$ corresponds to $U L$ in the text. The downward arrow "electron affinity" shows the negative quantity $-EA F$ , since $EA F$ is usually defined as positive.

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 Lazar, Miriam A.; Tarendash, Albert (2020-06-19). Let's Review Regents: Physics--Physical Setting 2020. Simon and Schuster. ISBN 978-1-5062-7087-6.

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[:0-1] 1.0 ^1.1 ^1.2 ^1.3 Lazar, Miriam A.; Tarendash, Albert (2020-06-19). Let's Review Regents: Physics--Physical Setting 2020. Simon and Schuster. ISBN 978-1-5062-7087-6.

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