Question

6
Essential ICSE Chemistry for Class 8
Long-Answer Questions
1. Explain the melting of a solid on the basis of the kinetic theory,
2. Explain the evaporation of a liquid on the basis of the kinetic theory.
3. Explain the liquefaction of a gas on the basis of the kinetic theory,
4. Explain the freezing of a liquid on the basis of the kinetic theory.
5. State the law of conservation of mass.
6. Describe an experiment which proves the law of conservation of mass,
bjective Questions​

Answer 1

Answer:

6

Essential ICSE Chemistry for Class 8

Long-Answer Questions

1. Explain the melting of a solid on the basis of the kinetic theory,

2. Explain the evaporation of a liquid on the basis of the kinetic theory.

3. Explain the liquefaction of a gas on the basis of the kinetic theory,

4. Explain the freezing of a liquid on the basis of the kinetic theory.

5. State the law of conservation of mass.

6. Describe an experiment which proves the law of conservation of mass,

bjective Questions

Answer 2

Answer:

On the basis of kinetic theory melting of a solid

1. when solid melts it change into liquid its kinetic energy increases because in liquid kinetic energy is more.

2. When liquid is heated it change into gas its kinetic energy increase because in gas kinetic energy is more than liquid.