A designer chooses the values of fluid flow rates and specific heats in such a m

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A designer chooses the values of fluid flow rates and specific heats in such a manner that the heat capacities of the two fluids are equal. A hot fluid enters the counter flow heat exchanger at 100°C and leaves at 60°C. A cold fluid enters the heat exchanger at 40°C. The mean temperature difference between the two fluids is

Options:

A . 66.7°C

B . 40°C

C . 20°C

D . 60°C

Answer: Option C

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