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the claim

A spontaneous process occurs without the need for a continual input of energy from an external source.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

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

Is it true that a spontaneous process occurs without the need for a continual input of energy from an external source?

Yes. Standard thermodynamic references consistently define a spontaneous process as one that takes place without requiring a continuous or continual input of energy from an external source.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

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Evidence for · 4
Wikipedia: Spontaneous process
Reference article covering this claim directly
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Wikipedia: Spontaneous process. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Spontaneous_process

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More for · 3
LibreTexts: LibreTexts: 16.01: Spontaneity
Explicitly states a spontaneous process occurs without continual energy input.
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LibreTexts: LibreTexts: 16.01%3A Spontaneity. (n.d.). LibreTexts. https://chem.libretexts.org/Bookshelves/General_Chemistry/Chemistry_1e_(OpenSTAX)/16%3A_Thermodynamics/16.01%3A_Spontaneity

OpenStax: OpenStax Chemistry: 16.1 Spontaneity
Defines nonspontaneous processes as requiring continual energy input, implying the reverse.
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OpenStax: OpenStax Chemistry: 16.1 Spontaneity. (n.d.). OpenStax. https://openstax.org/books/chemistry/pages/1ec31480-5f54-4666-9f50-50c208b22688@

LibreTexts: LibreTexts: 19.1: Spontaneous Processes
Repeats that a spontaneous process takes place without continuous external energy input.
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LibreTexts: LibreTexts: 19.1%3A Spontaneous Processes. (n.d.). LibreTexts. https://chem.libretexts.org/Courses/University_of_Missouri/MU%3A__1330H_(Keller)/19%3A_Chemical_Thermodynamics/19.1%3A_Spontaneous_Processes

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