Unformatted text preview: . 3 ( ) C K)(100 kg J kg)(390 50 . 3 ( ° = ⋅ + ⋅ ° ⋅ = T or C 9 . 28 ° to three figures. b) Using the result of Example 20.10, the total change in entropy is (making the conversion to Kelvin temperature) K. J 2 . 49 K 273.15 K 302.09 ln K) kg J kg)(4190 800 . ( K 373.15 K 302.09 ln K) kg J kg)(390 50 . 3 ( = ˜ ˜ ˆ ⋅ + ˜ ˆ ⋅ = D S (This result was obtained by keeping even more figures in the intermediate calculation. Rounding the Kelvin temperature to the nearest K 01 . gives the same result....
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 Spring '08
 goatman
 Thermodynamics, Absolute Zero, Entropy, kg

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