Maxwell's Demon proves why cold gases cannot make hot bodies hotter
James Clerk Maxwell is arguably the greatest physicist of all time on the topics of heat and radiation, and also perhaps the first to state in 1872 that Earth's temperature gradients and greenhouse effect are due to mass/gravity/pressure, rather than an effect of radiation from any infrared-active gases.
Maxwell devised a simple and well-known thought experiment now called Maxwell's Demon, to prove why cold gases (such as the atmosphere at -18C on average), cannot make warmer gases or bodies (such as the Earth surface at +15C average) any warmer in violation of the second law of thermodynamics.
The 2nd law of thermodynamics states disorder (called entropy) of any system (such as Earth's atmosphere) must always increase, and for any heat transfer to occcur from cold gases or bodies to warmer gases or bodies would result in an impossible decrease of entropy forbidden by the 2nd law of thermodynamics.
So, the next time someone claims a cold gas/body can make a warm body warmer, ask them for their solution to Maxwell's demon first:
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THE HOCKEY SCHTICK: Maxwell's Demon proves why cold gases cannot make hot bodies hotter
James Clerk Maxwell is arguably the greatest physicist of all time on the topics of heat and radiation, and also perhaps the first to state in 1872 that Earth's temperature gradients and greenhouse effect are due to mass/gravity/pressure, rather than an effect of radiation from any infrared-active gases.
Maxwell devised a simple and well-known thought experiment now called Maxwell's Demon, to prove why cold gases (such as the atmosphere at -18C on average), cannot make warmer gases or bodies (such as the Earth surface at +15C average) any warmer in violation of the second law of thermodynamics.
The 2nd law of thermodynamics states disorder (called entropy) of any system (such as Earth's atmosphere) must always increase, and for any heat transfer to occcur from cold gases or bodies to warmer gases or bodies would result in an impossible decrease of entropy forbidden by the 2nd law of thermodynamics.
So, the next time someone claims a cold gas/body can make a warm body warmer, ask them for their solution to Maxwell's demon first:
more
THE HOCKEY SCHTICK: Maxwell's Demon proves why cold gases cannot make hot bodies hotter