The standard state for measuring and reporting enthalpies of formation or reaction is 25 degrees Celsius and 1 atmosphere of pressure.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

1 source for · 0 against

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AS REPORTEDno primary record reached; this is what the reporting says

Is it true that the standard state for measuring and reporting enthalpies of formation or reaction is 25 degrees Celsius and 1 atmosphere of pressure?

Yes. The standard state temperature of 25 degrees Celsius and 1 atmosphere is standard thermodynamic convention.

Verdict: SUPPORTED · 1 source for, 0 against · Last checked 3 Oct 2026

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Evidence for · 1

Wikipedia: Standard state

Reference article covering this claim directly

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Wikipedia: Standard state. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Standard_state

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