State one similarity and one difference between evaporation and boiling.
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-
On converting 25 °C, 38 °C and 66 °C to kelvin scale, the correct answer will be
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identity the correct set of conditions.
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