8) A home is built on a concrete slab 20-cm thick. What is the approximate rate of heat transfer per are (in cal/s m²) i
Posted: Mon Jul 18, 2022 6:04 am
8) A home is built on a concrete slab 20-cm thick. What is the approximate rate of heat transfer per are (in cal/s m²) if the temperature in the home is 68° F and the ground temperature is 50° F? (The thermal conductivity of concrete is 2 x 10-cal/sxcmxCº) a. 1 b. 10 c. 100 d. 1000