Question

6. The best example to explain the interconversion of states of matter is water.

• A. True
• B. False

Answer 1

The correct option is A True

Step 1: Force of attraction between the molecules of the matter

• Matters are classified into three states namely solid liquid and gas,
• States of matter can be interconverted by changing temperature
• The force of attraction between the molecules of the matter is called the intermolecular force of attraction. It is maximum in solids, less in liquid and least in gases.

Step 2: Effect of temperature on the states of matter

• When the temperature increases, the interaction between the molecules decreases. Similarly, when the temperature decreases, it is easier for molecules and atoms to settle into a more rigid structure.
• Water(liquid) can be converted into ice(solid) and vapor(gas) by changing the temperature.

Step 3: Water cycle, an example of the interconversion of states of water

• During the water cycle water converts between the three states: water as rain (liquid), water vapor (gaseous), and solid as snow.
• When temperature increases water evaporates from oceans and converts from water (liquid) to water vapor (gaseous state).
• When the temperature falls the vapors change into the water and some of it in the form of snow (solid) on mountains and earth in the form of water.
• Thus water cycle is an example of the interconversion of states of water.

Hence, the best example to explain the interconversion of states of matter is water.

So, the above statement is True.