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First, the mixture is cooled from T2 to T3 without condensation. The heat effect of this step is removal of sensible heat. Second, the required quantity of water is condensed at temperature T3, during which the enthalpy of vaporization is released. From Eq (5.10): Ahvap = 5300 x 8.314 = 44,000 J/mole and:

Q23 = H2 -H3 = ntotCp(T2 - T3) + f (nv2/na)Ahvap = 725 + 1425 = 2150 J/mole air

Problems 8.2, 8.12, 8.13, 8.15, and 8.21 explore other aspects of the above condensation process.

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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