Question

Give two reasons to justify: Water at room temperature is liquid.

Answer 1

1. In liquids, the particles are loosely packed and the interparticle space between them is relatively larger when compared to that of a solid, at room temperature.
2. Water is liquid because it has weaker interparticle forces when compared to solids but stronger interparticle forces when compared to gas, at room temperature.
3. Here, the interparticle force of attraction is the force by which particles of a state of matter attract each to form matter.
4. So at room temperature, due to lower interparticle force of attraction, there is more interparticle space between the molecules of liquid.
5. Therefore, water exists in liquid state at room temperature.