Particle model of matter

Gas particles move in _____ directions

Random

Gas particles generally move ____ than the particles in solids or liquids

Faster

Gas particles collide: once in a while, frequently or constantly

Frequently

The force acting on a container of gas due to the collision of particles is at ____ ____ to the container

Right angles

What is the equation that represents the pressure caused by a gas?

Pressure = force/ area

What is the approximate pressure in the atmosphere at sea level?

100 000 N/m squared

The temperature of a gas is a measure of the average ____ ____ of its particles

Kinetic energy

Pressure is ____ proportional to temperature

Directly

If the pressure is increased, what will happen to the volume?

It will decrease

What was the name of the scientist who poured mercury into a J-shaped tube to investigate the relationship between pressure and volume?

Robert Boyle

Volume is ____ proportional to pressure

Inversely

What is the word equation for a fixed mass of gas at a constant temperature?

Pressure x volume = constant

With gases in a container, increasing the temperature increases the ____ of each collision

Force

Decreasing the volume of a container containing gases, increases the _____ of collisions

Number

The ____ ____ ____ of a material is the energy required to raise one kilogram of that material by one degrees Celsius

Specific heat capacity

A low specific heat capacity means that the object will warm up and cool down ____

Quickly

A high specific heat capacity means that the object will warm up and cool down ____

Slowly

The specific heat capacity of water is ______ J/kg degrees celsius

4200

Change in thermal energy =

Mass x specific heat capacity x temperature change