Engineering, 19.12.2019 21:31 juniorvalencia4
The vapor pressure of pure water at 295 k is 2614.5 pa. the vapor forms an ideal gas.1) in some oil, the equilibrium concentration of water molecules is only 1% as large as in pure water. suppose that the pure water is covered with a layer of that oil. what's the equilibrium vapor pressure of water above the oil layer? answer = 2614.5 pa2) what's the vapor pressure of water at 295 k above a sugar solution in which 1/32 of the molecules are sugars, not water? you may assume that the sugar is an ideal solute, as in the problem on sugar water chemical potential. for ideal solutes the effect on the chemical potential of the water comes entirely from the dependence of the solute entropy on the volume of water available to it.
Answers: 2
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Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
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Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
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