Kinetic Particle Theory Flashcards
What are the properties of a solid?
1) they have a fixed volume
2) they cannot be compressed
3) they have a fixed shape
4) they do not flow
What are the properties of a liquid?
1) they have a fixed volume
2) they cannot be compressed
3) they do not have a fixed shape
4) they flow easily
What are the properties of a gas?
1) they have no fixed volume
2) they have no fixed shape
3) they flow in every direction
4) they can be compressed easily
What is diffusion?
Diffusion in liquid and gases is the spreading of a liquid or gas from region of high concentration to a reigion of low concentration
What are the two two things that affect rate of diffusion?
Number 1 molecular mass a number two temperature.
What is the effect of temperature on the rate of diffusion?
1) the lower the molecular mass the fastest diffusion.
2) The Higher the temperature the more kinetic energy the particles gain and more faster they diffuse.
What are the differences between the properties of matter and properties of particles?
Matter. 1) can be seen with the colour for example sulfer is yellow. 2) can be felt hot or cold. 3 expands when heated because the distance between particles increase. Particles. 1) cannot be seen 2) cannot be felt hot or cold 3) do not expand
How does melting take place?
The particles in the solid absorb energy upon heating.They move faster than faster until they break the bond which is also called intermolecular forces. Resulting in allowing the particles to move a little freely and now they are liquid.
Why does the temperature remain constant upon changing state?
It remain constant because the heat energy is taken up by the particles break the forces of attraction also known as intermolecular forces and not being used to increase the temperature thus making the temperature remain constant call sometime
Explain the process of freezing?
The particles when cool start to move slowly and more slowly thus increasing their intermolecular forces this results in eventually them becoming very close together and their intermolecular forces becoming very strong making them a solid. In Short words to the particles are overcome by the forces of attraction.
Why does the temperature remain constant when freezing is taking place?
Temperature remains constant because upon cooling the particles to release heat energy the temperature does not decrease resulting in the temperature remaining constant for sometime. The time when the temperature is constant it is a mixture of solid and liquid.
Explain the process of boiling?
The particles in liquid when heated gain energy resulting in kinetic energy been given to the particles. They move so vigorously that the forces of attraction between them break resulting in the liquid becoming gas.
What is condensation?
When a gas is cooled it changes to liquid this is called condensation heat energy is given out one condensation occurs.
What is evaporation?
Liquid can also be turned into gases without boiling. Liquid changes its state to gas before reaching boiling point it is known as evaporation.
What is sublimation?
Sublimation is changing of state straight from solid to gas without reaching the state of liquid. Some elements have the property of being sublime
