7-225 Heat is lost through a plane wall steadily at a rate of 600 W. If the inner and outer surface temperatures of the wall are 20°C and 5°C, respectively, the rate of entropy generation within the wall is a) 0.11 W/K b) 4.21 W/K c) 2.10 W/K d) 42.1 W/K e) 90.0 W/K | |
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