Physics - Solids, liquids and gases

Solids

Fixed shape and volume - strong bonding, particles vibrate around a fixed position

Liquid

Fixed volume, not fixed shape - weaker bonding, movement is random and particles flow around eachother

Gases

No fixed shape nor volume - very weak bonds, widely spread, random rapid motion

Boyles law

Pressure and volume of a gas have an inverse relationship

Gas pressure is caused when

Atoms colliding and rebounding with the walls of their container, which exerts forces onto these walls

What conditions must be kept the same

mass / at a constant temperature

Gas volume - pressure equation

P1 X V1 = P2 X V2

Direct proportion

Straight line through the origin

Inverse proportion

Relationship in which the product of two variables is a constant, as x increases y decreases

Pressure and temperature in gases

As the temperature of gas increases, the pressure increases (directly proportional)

How does pressure of a gas increase with temperature

The increase in kinetic energy results in the molecules of gas striking the walls of the container more frequently and with more force, force increasing results in a greater pressure

What is the Kelvin scale used for?

To ensure that temperature and pressure are directly proportional.

How do you convert Celsius to Kelvin?

Celsius + 273