Describe an experiment that can be used to demonstrate Effects of increased pressure on boiling point.

Describe an experiment that can be used to demonstrate Effects of increased pressure on boiling point.

Answers

The heating is done until water starts to boil. The temperature at which water boils is noted. When the rubber tube issuing steam is squeezed momentarily, the reading on the thermometer is observed to rise and boiling reduces. Note that closing the tube raises the vapour pressure within the flask. This makes it difficult for the molecules from the surface of the liquid to escape, raising the boiling point of the liquid.
The effect of high pressure on boiling point is applied in a pressure cooker. Here the pressure is raised which raises the boiling point of water hence the food is cooked at a higher temperature.

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sharon kalunda answered the question on April 24, 2019 at 10:00

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