Like the flow calorimeter of Figure 2.6, a particular single-cup coffee maker uses an electric heating element to heat a steady flow of water from 22°C to 88°C. It heats 8 fluid ounces of water (with a mass of 237 g) in 60 s. Estimate the power requirement of the heater during this process. You may assume the specific heat of water is constant at 4.18 J⋅g⁻¹⋅°C⁻¹.

Figure 2.6

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Section 1 T2 P2 Heater Valve Discharge Constant temperature bath Section 2 Applied emf Supply Figure 2.6: Flow calorimeter.