Question: 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

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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