An office worker claims that a cup of cold coffee on his table warmed up to 80C

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An office worker claims that a cup of cold coffee on his table warmed up to 80°C by picking up energy from the surrounding air, which is at 25°C. Is there any truth to his claim? Does this process violate any thermodynamic laws?
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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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