A plane wall was maintained initially at a temperature of 35 C. It is subjected to an ambient temperature of 45 C at one surface. If the heat transfer coefficient at the surfaces of the wall is assumed to be infinite, then what is the new temperature at the wall surface?

A plane wall was maintained initially at a temperature of 35 C. It is

1.	A plane wall was maintained initially at a temperature of 35 C. It is subjected to an ambient temperature of 45 C at one surface. If the heat transfer coefficient at the surfaces of the wall is assumed to be infinite, then what is the new temperature at the wall surface?
A.	35 C
B.	45 C
C.	40 C
D.	50 C
Answer» C. 40 C

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A plane wall was maintained initially at a temperature of 35 C. It is subjected to an ambient temperature of 45 C at one surface. If the heat transfer coefficient at the surfaces of the wall is assumed to be infinite, then what is the new temperature at the wall surface?

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