problem20_31

University Physics with Modern Physics with Mastering Physics (11th Edition)

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20.31: a) K. J 109 K) 15 . 373 ( ) kg J 10 kg)(2256 10 0 . 18 ( 3 3 v = × × = = = - T mL T Q S b) K J 8 . 72 K) 34 . 77 ( kg) J 10 kg)(201 10 0 . 28 ( : N 3 3 2 = × × - K J 2 . 102 K) 2466 ( kg) J 10 kg)(2336 10 (107.9 : Ag 3 3 = × × - K J 6 . 86 K) 630 ( kg) J 10 kg)(272 10 (200.6 : Hg 3 3 = × × - c) The results are the same order or magnitude, all around K J 100 .The entropy change is a measure of the increase in randomness when a certain number (one mole) goes from the liquid to the vapor state. The entropy per particle for any substance in a
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Unformatted text preview: vapor state is expected to be roughly the same, and since the randomness is much higher in the vapor state (see Exercise 20.30), the entropy change per molecule is roughly the same for these substances....
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