An inventor has developed a device that at stead state takes in liquid water at

Question

An inventor has developed a device that at stead state takes in liquid water at 25 degree C, 100 kPa with a mass flow rate of 4 kg/hr, and produces separate streams of hydrogen (H2) and oxygen (O2), each at 25 degree C, 100 kPa. The inventor claims that his device requires 14.6 kW when operating isothermally at 25 degree C. Assume that any kinetic or potential energy changes of the fluid streams are negligible. 1) Analyze the above claim to determine if it is legitimate. 2) If you find the claim to be legitimate, how much lower could the power requirement be? On the other hand, if you find the claim to be false, what should be the minimum power requirement of the device?

Explanation / Answer

1) If you take entalpy of formation of water at 25

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