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Results tagged with temperature
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user 206319
It's the physical property that indicates the degree/intensity of heat present in a substance or an object. It can be expressed and measured according to various scales.
0
votes
Why the third law of thermodynamics requires reversibility?
Callen is that:
... no reversible adiabatic process starting at nonzero temperature can possibly bring a system to zero temperature. … absolute thermal isolation and of infinitely precise temperature measurability. …
- 1,978
2
votes
1
answer
280
views
Is it possible to cool down air with warm water?
Is there some condition in wich the water evaporation can cool down the air even if the water is hotter than the air?
- 1,978
1
vote
3
answers
182
views
A reversible transformation, but there is finite temperature heat transfer?
Suppose to have 3 heat reservoirs, the first at temperature $T_1$, the second at temperature $T_1+dT$ and the third at temperature $T_2>T_1$
Then, consider a system, which volume is constant, in thermal … This seams paradoxical, because in the transformation there is heat transfer with finite temperature difference. …
- 1,978