Air enters in a counter flow heat exchanger at 70°C and leaves at 40� – McqOptions

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1.	Air enters in a counter flow heat exchanger at 70°C and leaves at 40°C. Water enters at 30°C and leaves at 50°C The LMTD in °C is
A.	5.65
B.	14.43
C.	19.52
D.	20.17
Answer» C. 19.52

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