Question

2. Given below are certain changes taking place to the particles during change of state. From this, find out and tabulate the changes in the particles when water boils to form steam and also when steam condenses to form water. • ​
*distance increases
*attractive force decrease s
*energy increase s
*rate of movement increases
*distance decrease s
*energy decrease s
*attractive force increased

Answer 1

Answer:

solid,liquid,gaseous

Explanation:

Answer 2

The changes in the particles when water boils to form steam are:

• Distance increases
• Attractive force decreases
• Energy increases
• Rate of movement increases.

The changes in the particles when steam condenses to form water.

• Distance decreases

• Energy decreases
• Attractive force increases
• Rate of movement decreases

Explanation:  

Water particles absorb energy in the form of heat because vapourization is an endothermic process.

When the heat passes through the water, it gets converted into steam.  

• Therefore,  the heat/energy increases.  
• Distance between the particles increases as they move far from each other due to the movement of water particles.  
• And the attractive force between the particles reduces.  
• The movement of particles also reduces.  

Heat dissipates when water condenses to form steam. Because condensation is an exothermic process. So, energy dissipates to the surroundings.  

• Energy decreases.
• Attractive force increases, which helps in decreasing the distance between particles.
• The movement of the particles increases