alleryStart learning →Why is the zeroth law of thermodynamics given a number lower than the first and second laws?
ADiscovered later, but seen as basic
BDiscovered before laws one and two
CIt applies only at zero kelvin
DRenumbered by standards committees
Answer & Solution
Correct answer: A. Discovered later, but seen as basic
1. The zeroth law was actually discovered after both the first and second laws of thermodynamics.
2. Because it describes something so basic and foundational, scientists decided it should logically be placed before the others.
3. It has nothing to do with a temperature of zero kelvin, despite its name.
4. No renumbering by a standards committee is given as the reason.
5. So being discovered later but treated as more fundamental is correct.
_Source: OpenStax Physics (CC BY 4.0), Ch 12 "Thermodynamics", section 12.1 Zeroth Law of Thermodynamics: Thermal Equilibrium_
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