Question

Emergent property (properties) caused by hydrogen bonds in water isfare): (1) High heat of evaporation(2) Cohesion (3) High specific heat e Law density of ice (4) All of the above

Answer 1

All of the given above are emergent properties of water. Hence option 4 is correct.

Water is cohesive- The forces of attraction between the water molecules forms the hydrogen bond. This makes the water molecules to stick together. This is known as cohesion.

High specific heat and high heat of vaporization - Both of them give a cooling effect and maintains a constant temperature for water. The high specific heat allows water to retain more heat. High heat of vaporization allows water to take up more energy to convert into gas.

In ice form, a lattice is formed and hydrogen bonds can no longer be broken. Thus, it becomes expansive than in liquid form. This gives it less density.