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7672857
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So many of the properties of matter, especially when in the gaseous form, can be deduced from the hypothesis that their minute parts are in rapid motion, the velocity increasing with the temperature, that the precise nature of this motion becomes a subject of rational curiosity. , , , , , &c., have shewn that the relations between pressure, temperature and density in a perfect gas can be explained by supposing the particles move with uniform velocity in straight lines, striking against the sides of the containing vessel and thus producing pressure. (1860)
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science
august-krönig
bernoulli
clausius
daniel-bernoulli
herapath
james-joule
james-prescott-joule
john-herapath
joule
kronig
rudolf-clausius
rudolf-gottlieb
rudolf-julius-emanuel-clausius
matter
temperature
motion
property
curiosity
physics
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James Clerk Maxwell |
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99c278e
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"In despair, I offer your readers their choice of the following definitions of entropy. My authorities are such books and journals as I have by me at the moment. (a) Entropy is that portion of the intrinsic energy of a system which cannot be converted into work by even a perfect heat engine.--Clausius. (b) Entropy is that portion of the intrinsic energy which can be converted into work by a perfect engine.--Maxwell, following Tait. (c) Entropy is that portion of the intrinsic energy which is not converted into work by our imperfect engines.--Swinburne. (d) Entropy (in a volume of gas) is that which remains constant when heat neither enters nor leaves the gas.--W. Robinson. (e) Entropy may be called the 'thermal weight', temperature being called the 'thermal height.'--Ibid. (f) Entropy is one of the factors of heat, temperature being the other.--Engineering.
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science
peter-guthrie-tait
peter-tait
tait
robinson
maxwell
james-clerk-maxwell
james-maxwell
rudolf-clausius
rudolf-julius-emanuel-clausius
entropy
definition
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Sydney Herbert Evershed |