Answer:
a. the frozen form is more dense than the liquid form
Explanation:
The remaining properties are exhibited by water and are described as follows.
b. the frozen form is less dense than the liquid form
1. Water freezes to form ice.
2. When ice is put in water, ice starts floating in water and is visible.
3. If the density of ice was greater than water, ice would have got sunk and go downwards in the water body.
4. Hence, ice which is frozen form of water, has less density than water.
c. water is a solvent
1. The solvency is defined as the ability of a liquid to dissolve a substance.
2. Water is called the universal solvent. This means water can dissolve almost all types of substances.
3. Water is a polar solvent. The polar water molecules have the ability to break down both ionic and covalent bonds.
d. water has a high heat capacity
1. This is defined as the amount of heat needed by 1 gram of a substance so that its temperature is changed by 1 degree centigrade. The heat can either be gained or lost for the temperature to change.
2. The heat required by 1 gram of water to either increase or decrease the temperature of water is called the heat capacity of water.
e. water has a high heat of evaporation
1. This is defined as the amount of heat needed by 1 gram of a substance so that it changes its state from liquid to gas.
2. The heat required to convert 1 gram of water into vapours is called the heat of evaporation of water.
3. 1 g of water when heated at 25 centigrade needs 580 calories of heat to convert into gas.
All the above properties of water show the importance of water for life.
