An experiment to determine the saturated vapour pressure and boiling point of water

Setup

• Atmospheric pressure, H. is deterined using a mercury barometer
• Water is trapped in a J tube as shown in A
• The J-tube in and its content is transferred into a beaker of water B and a thermometer is inserted as shown in B.
• Water in the beaker is heated until it boils, and the boiling point is obtained from the constant reading of the thermometer.
• It also noted that the levels water in the closed and open the J-tubes are at the same level indicating that water boils when its saturated vapor pressure is equal to the atmospheric pressure H.

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Dr. Bbosa Science