1.

In a Counter flow heat exchanger design, fluid rates and specific heats were chosen in such a manner that heat capacities of both the fluids are same. A hot fluid enters at 100°C and leaves at 60°C. The cold fluid enters heat exchanger at 40°C. The mean temperature difference between the two fluids is

A. 40°C
B. 60°C
C. 20°C
D. 36.6°C
Answer» D. 36.6°C


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