Solid, Liquid And Gas Flashcards
Describe a liquid
A liquid’s atoms are compact but are not ordered in a lattice. The atoms have more kinetic energy than a solid allowing the atoms to move around liquid.
Describe a solid
A solid’s atoms are tightly spaced in an organised lattice. The atoms all have slightly different kinetic energy a and all vibrate around a fixed point.
Describe a gas
A gasses atoms are extremity spaced apart and are not arranged in any order. They are have high kinetic energy and high velocities.
Describe an experiment that demonstrates Brownian motion
A gas slide containing smoke is analysed under a microscope. A light is then shone through. The smoke particles reflect the light and can be seen moving in an unpredictable motion
Definition of pressure
Force applied per unit area
What is internal energy?
The internal energy is the sum of kinetic and potential energy of a particle
Absolute zero
The temperature where a particle can no longer lose energy. It is 0K
Definition of specific heat capacity
The specific heat capacity of a substance is the amount of energy needed to to raise the temperature of 1k of substance by 1K
Specific latent heat of fusion
The energy required to break bonds to change a substances state from solid to liquid. Same applies for liquid to solid
Specific latent heat of vaporisation
The energy required to separate the particles to change the state of matter of a substance from a liquid to a gas
Definition of pressure
Force applied per unit area
What is internal energy?
The internal energy is the sum of kinetic and potential energy of a particle
Absolute zero
The temperature where a particle can no longer lose energy. It is 0K
Definition of specific heat capacity
The specific heat capacity of a substance is the amount of energy needed to to raise the temperature of 1k of substance by 1K
Specific latent heat of fusion
The energy required to break bonds to change a substances state from solid to liquid. Same applies for liquid to solid
