A slab of concrete, 5 8 0.3 m, is used as a thermal storage mass i – McqOptions

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1.	A slab of concrete, 5 8 0.3 m, is used as a thermal storage mass in a house. The slab cools overnight from 23 C to 18 C in an 18 C house, find the net entropy change associated with this process?
A.	0.4 kJ/K
B.	1.4 kJ/K
C.	2.4 kJ/K
D.	3.4 kJ/K
Answer» E.

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