The differences in the characteristics of states of matter are given in the following table. Solid state: 1. Definite shape and volume. 2. Incompressible 3. There is little space between the particles of a solid. 4. These particles attract each other very strongly. 5. Particles of solid cannot moveRead more
The differences in the characteristics of states of matter are given in the following table.
Solid state:
1. Definite shape and volume.
2. Incompressible
3. There is little space between the particles of a solid.
4. These particles attract each other very strongly.
5. Particles of solid cannot move freely.
Liquid state:
1. No definite shape. Liquids attain the shape of the vessel in which they are kept.
2. Compressible to a small extent.
3. These particles have a greater space between them.
4. The force of attraction between liquid particles is less than solid particles.
5. These particles move freely.
Gaseous state:
1. Gases have neither a definite shape nor a definite volume.
2. Highly compressible
3. The space between gas particles is the greatest.
4. The force of attraction is least between gaseous particles.
5. Gaseous particles are in a continuous, random motion.
The given substances in the increasing order of their densities can be represented as: Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
The given substances in the increasing order of their densities can be represented as: Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron
• The characteristics of particles of matter are: • Particles of matter have spaces between them. • Particles of matter are continuously moving. • Particles of mater attract each other. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
• The characteristics of particles of matter are:
• Particles of matter have spaces between them.
• Particles of matter are continuously moving.
• Particles of mater attract each other.
Solids diffuse at a very slow rate. But, if the temperature of the solid is increased, then the rate of diffusion of the solid particles into air increases. This is due to an increase in the kinetic energy of solid particles. Hence, the smell of hot sizzling food reaches us even at a distance, but tRead more
Solids diffuse at a very slow rate. But, if the temperature of the solid is increased, then the rate of diffusion of the solid particles into air increases. This is due to an increase in the kinetic energy of solid particles. Hence, the smell of hot sizzling food reaches us even at a distance, but to get the smell from cold food we have to go close.
Anything that occupies space and has mass is called matter. Matter can exist in three physical states—solid, liquid, and gaseous. Chair and almond are forms of matter in the solid state. Cold drink is a liquid state of matter. Air and smell of perfume are gaseous states of matter. Note: The sense ofRead more
Anything that occupies space and has mass is called matter. Matter can exist in three physical states—solid, liquid, and gaseous.
Chair and almond are forms of matter in the solid state.
Cold drink is a liquid state of matter.
Air and smell of perfume are gaseous states of matter.
Note: The sense of smell is not matter. However, the smell or odour of a substance is classified as matter. The smell of any substance (say, perfume) is the gaseous form of that substance which our olfactory system can detect (even at very low concentrations). Hence, smell of perfume is matter.
Tabulate the differences in the characteristics of states of matter.
The differences in the characteristics of states of matter are given in the following table. Solid state: 1. Definite shape and volume. 2. Incompressible 3. There is little space between the particles of a solid. 4. These particles attract each other very strongly. 5. Particles of solid cannot moveRead more
The differences in the characteristics of states of matter are given in the following table.
Solid state:
1. Definite shape and volume.
2. Incompressible
3. There is little space between the particles of a solid.
4. These particles attract each other very strongly.
5. Particles of solid cannot move freely.
Liquid state:
1. No definite shape. Liquids attain the shape of the vessel in which they are kept.
2. Compressible to a small extent.
3. These particles have a greater space between them.
4. The force of attraction between liquid particles is less than solid particles.
5. These particles move freely.
Gaseous state:
See less1. Gases have neither a definite shape nor a definite volume.
2. Highly compressible
3. The space between gas particles is the greatest.
4. The force of attraction is least between gaseous particles.
5. Gaseous particles are in a continuous, random motion.
The mass per unit volume of a substance is called density. (density = mass/volume). Arrange the following in order of increasing density-
The given substances in the increasing order of their densities can be represented as: Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
The given substances in the increasing order of their densities can be represented as: Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
What are the characteristics of the particles of matter?
• The characteristics of particles of matter are: • Particles of matter have spaces between them. • Particles of matter are continuously moving. • Particles of mater attract each other. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
• The characteristics of particles of matter are:
• Particles of matter have spaces between them.
• Particles of matter are continuously moving.
• Particles of mater attract each other.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
Give reasons for the following observation:
Solids diffuse at a very slow rate. But, if the temperature of the solid is increased, then the rate of diffusion of the solid particles into air increases. This is due to an increase in the kinetic energy of solid particles. Hence, the smell of hot sizzling food reaches us even at a distance, but tRead more
Solids diffuse at a very slow rate. But, if the temperature of the solid is increased, then the rate of diffusion of the solid particles into air increases. This is due to an increase in the kinetic energy of solid particles. Hence, the smell of hot sizzling food reaches us even at a distance, but to get the smell from cold food we have to go close.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/
Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume.
Anything that occupies space and has mass is called matter. Matter can exist in three physical states—solid, liquid, and gaseous. Chair and almond are forms of matter in the solid state. Cold drink is a liquid state of matter. Air and smell of perfume are gaseous states of matter. Note: The sense ofRead more
Anything that occupies space and has mass is called matter. Matter can exist in three physical states—solid, liquid, and gaseous.
Chair and almond are forms of matter in the solid state.
Cold drink is a liquid state of matter.
Air and smell of perfume are gaseous states of matter.
Note: The sense of smell is not matter. However, the smell or odour of a substance is classified as matter. The smell of any substance (say, perfume) is the gaseous form of that substance which our olfactory system can detect (even at very low concentrations). Hence, smell of perfume is matter.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-1/