What is kinetic theory Igcse?
The kinetic particle theory explains the properties of the different states of matter. The particles in solids, liquids and gases have different amounts of energy. They are arranged differently and move in different ways.
What is diffusion Igcse chemistry?
Diffusion in gases The particles of smelly gas are free to move quickly in all directions. They eventually spread throughout the whole room. This is called diffusion. Diffusion in gases is quick because the particles in a gas move quickly.
What is kinetic particle theory in chemistry?
The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.
What is kinetic theory GCSE physics?
The kinetic theory model can be used to explain the properties of solids, liquids and gases by considering the molecules they are made from and their motion. For gases, the kinetic theory model explains that gas pressure is caused by the collisions between the particles and their container.
What are the main points of the kinetic theory of matter?
The kinetic molecular theory of matter states that:
- Matter is made up of particles that are constantly moving.
- All particles have energy, but the energy varies depending on the temperature the sample of matter is in.
- The temperature of a substance is a measure of the average kinetic energy of the particles.
What are the 5 points of the particle theory of matter?
Terms in this set (5) All matter is made of particles. Particles have space between them. Particles are always moving. Particles move faster and get farther apart when heated.
Why diffusion is faster in vacuum?
In vacuum, since no air molecule is present, the molecules of the substance to be diffused don’t face any resistance or opposition. Thus, no collision and hindrance causing the diffusion to occur faster.
What is an example of diffusion Igcse?
Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration (ie: down the concentration gradient). For example, oxygen moves from a high concentration in the lungs to a low concentration in the blood.
What are the 5 main ideas of the particle theory?
What are the six main points of the particle theory of matter?
- All matter is made of particles.
- Particles have space between them.
- Particles are always moving.
- Particles move faster and get farther apart when heated.
- Particles are attracted to each other.
- All Particles of the same substance are identical.
What does kinetic theory explain?
Kinetic energy is energy that an object has because of its motion. The Kinetic Molecular Theory explains the forces between molecules and the energy that they possess. When the molecules collide with each other, or with the walls of a container, there is no significant loss of energy.
What is the kinetic theory in CIE IGCSE?
Home CIE IGCSE Chemistry Revision Notes 1. The Particulate Nature of Matter 1.1 The Particulate Nature of Matter 1.1.1 Kinetic Theory Strong forces of attraction between particles, particles are packed very closely together in a fixed and regular pattern
How does diffusion work using the particle theory?
Diffusion can also happen in liquids. This is because the particles in liquids can move around each other, which means that eventually they are evenly mixed. For example, if you drop a little bit of paint into a jar of water the colour will spread slowly through the water by diffusion.
How is the diffusion of a gas proved?
Diffusion of gases can be proved very easily. We can prove it by putting some bromine liquid in a cylinder and sealing it, then putting another inverted cylinder above it. When the bromine liquid evaporates, we remove the lid between the two cylinders, the brown bromine gas will diffuse upwards filling the available space.
Why does diffusion not occur in a solid?
Diffusion does not happen at all in solids because the particles in a solid can only vibrate on the spot, rather than being able to move from place to place.
