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the claim

The dry adiabatic lapse rate is approximately 9.8 degrees Celsius per kilometer.

the verdict
COMMON KNOWLEDGE
Legacy classification; evidence review pending
Recorded sources
no sources on either side

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

Is it true that the dry adiabatic lapse rate is approximately 9.8 degrees Celsius per kilometer?

The dry adiabatic lapse rate is a well-established physical constant in meteorology representing the rate of temperature decrease with altitude for an unsaturated parcel of air, and thus no citation is needed.

Verdict: COMMON KNOWLEDGE · 0 sources for, 0 against · Last checked

The analysis

The claim states the standard dry adiabatic lapse rate, which is approximately 9.8 degrees Celsius per kilometer (or about 9.8 K/km). This is a fundamental physical constant defined by gravity and the specific heat capacity of dry air, making it a matter of common knowledge and textbook physics rather than a hypothesis requiring empirical debate in the provided literature.

What does the evidence say?

The claim states the standard dry adiabatic lapse rate, which is approximately 9.8 degrees Celsius per kilometer (or about 9.8 K/km). This is a fundamental physical constant defined by gravity and the specific heat capacity of dry air, making it a matter of common knowledge and textbook physics rather than a hypothesis requiring empirical debate in the provided literature.

Receipt History
first checked04 Aug 2026
judged → COMMON KNOWLEDGE · 9504 Aug 2026
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