P21_068 - 68. (a) Eq. 21-13 provides KC = |QL | |QH | |QL |...

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68. (a) Eq. 21-13 provides K C = | Q L | | Q H |−| Q L | = ⇒| Q H | = | Q L | µ 1+ K C K C which yields | Q H | =49kJwhen K C =5 . 7and | Q L | =42kJ. (b) From § 21-5 we obtain | W | = | Q H |−| Q L | =49 . 4kJ 42 . 0kJ=7 . 4kJ if we take the initial 42 kJ datum to be accurate to three ±gures. The given temperatures are not used in the calculation; in fact, it is possible that the given room temperature value is not meant
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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