Is there any change in mass when a substance changes its state? Expla

1.	Is there any change in mass when a substance changes its state? Explain with example.
Answer» 1. Take a beaker and fill it with ice cubes. 2. Find the mass (m₁) of the beaker along with ice cubes using a spring balance. 3. Keep the beaker at rest for some time, till the ice changes into water. 4. Then find the mass (m₂) of the beaker along with water. 5. We observe that m₁ = m₂. 6. We conclude that the mass never changes when a substance changes its state.

Is there any change in mass when a substance changes its state? Explain with example.

Answer»

1. Take a beaker and fill it with ice cubes.

2. Find the mass (m₁) of the beaker along with ice cubes using a spring balance.

3. Keep the beaker at rest for some time, till the ice changes into water.

4. Then find the mass (m₂) of the beaker along with water.

5. We observe that m₁ = m₂.

6. We conclude that the mass never changes when a substance changes its state.