GCSE Pressure Coursework

We are trying to find out how the volume of a fixed amount of gas changes as its temperature is increased.

Based on my previous work, I predict that the volume will increase when the temperature is increased. According to Charles’ law pressure and volume are directly proportional ie. When the temperature is doubled the pressure is also doubled. This is because the particles have twice as much kinetic energy and consequently hit the walls of the container twice as often. This exerts an outward force on each unit of area, and hence this is pressure.

A graph that depicts volume and temperature is a straight line graph and so confirms that pressure increases uniformly with volume. The graphs do not pass through 0° Celcius, instead (if the line is retracted back), they intercept x (temperature) at -273° C. This is known as absolute zero, and is known as 0°C on the Kelvin temperature scale.

The volume of a fixed mass of gas is directly proportional to its absolute temperature if the pressure is kept constant.

The pressure of a fixed mass of gas is directly proportional to its absolute temperature if t

Furthermore, the kinetic theory can explain how solid, liquids and gases exist.

Some topics in this essay:
Boyle’s Law, Results Temperature, Bourdon Gauge, According Charles’, Evidence Experiment, Bourdon Guage, Stirrer Precautions, Constant Volume, Charles’ Law, Pressure Law, law pressure, hit walls, temperature °c pressure, 64 159 725, °c pressure, pressure psi, psi 155, 725 16, 159 725, 64 159, 725 16 82, 159 725 16, 325 15, 15 42, 325 15 42,