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To a 1L flask that contains air at a pressure of 104 kPa a small amount...

To a 1L flask that contains air at a pressure of 104 kPa a small amount of liquid is added. The pressure in the flask after the addition of the liquid is 107 kPa. What is the vapor pressure of the liquid

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Answer #1

Solution :-

pressure of the gas = 104 kpa

total rpessure = 107 kpa

vapor pressure of liquid = ?

Total pressure = pressure of gas + vapor pressure of liquid

therefore

vapor pressure of liquid = total pressure - pressure of gas

                                  = 107 kPa - 104 kPa

                                  = 3.00 kPa

Therefore the vapor pressure of the liquid is 3.00 kPa

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