The vapor pressure of water at 65oc is 187.54 mmhg. what is the vapor pressure of a ethylene glycol (ch2(oh)ch2(oh)) solution made by dissolving 22.37 g of ethylene glycol in 82.21 g of water?

173.83 mmHg is the vapor pressure of a ethylene glycol solution.

Explanation:

Vapor pressure of water at 65 °C=

Vapor pressure of the solution at 65 °C=

The relative lowering of vapor pressure of solution in which non volatile solute is dissolved is equal to mole fraction of solute in the solution.

Mass of ethylene glycol = 22.37 g

Mass of water in a solution = 82.21 g

Moles of water=

Moles of ethylene glycol=

173.83 mmHg is the vapor pressure of a ethylene glycol solution.

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in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.