Question

List four factors which affect the rate of evaporation.

Describe an activity to show that water vapour is present in air.

Distinguish solids, liquids and gases in a tabular form under the following characteristics-

For determining the melting point of ice, the thermometer should be kept-

A student heats a beaker containing ice and water. He measures the temperature of the contents of the beaker as a function of time. Which of the following would correctly represent the result? Give justification for your choice.