Question: The fan on a personal computer draws 0.3 ft3/s of air at 14.7 psia and 70°F through the box containing the CPU and other components.

The fan on a personal computer draws 0.3 ft3/s of air at 14.7 psia and 70°F through the box containing the CPU and other components. Air leaves at 14.7 psia and 83°F. Calculate the electrical power, in kW, dissipated by the PC components.

FIGURE P5-91E

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