Assertion :According to kinetic theory of gases, gas molecules occupy some space. Reason :Gases can be liquefied and solidified.

Gas molecules have very weak bonds or force of attraction. They can move freely and quickly. A gas conform to the shape of its container, it will also expand to completely fill the container. Gas molecules have enough kinetic energy such that the effect of intermolecular forces is small. The typical distance between neighbouring molecules is much greater than the size of the molecules themselves. Liquefaction of a gas occurs when its molecules are pushed closer together. Gas molecules can be squeezed together by one of two methods: 1. By increasing the pressure. 2. By lowering the temperature