Chemistry, 21.08.2019 20:20, Greenrune113
Abasement wall made of stone mix concrete (ksm = 1.4 w/mk) is 250 mm thick; its inner and outer wall temperatures are 20 °c and 0°c respectively. polystyrene sheet (kps = 0.027 w/mk) is added to maintain the heat flux at 12 w/m2. what is the thickness of polystyrene sheet? select one: o a. 50 mm o b. 40 mm o c. 30 mm o d. 20 mm
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Abasement wall made of stone mix concrete (ksm = 1.4 w/mk) is 250 mm thick; its inner and outer wal...
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