| What is the pressure of gas due to? | The pressure of a gas is due to the particles colliding with the walls of the container the gas is held in |
| How can the pressure of a gas be increased? | The pressure of a gas can be increased by increasing the number of collisions per second or by increasing the energy of each collision, one way to do this is by increasing the temperature of the |
| What is the temperature of a gas directly proportional to? | The temperature of a gas is directly proportional to the average kinetic energy of the particles |
| Why do gasses have a low pressure at low temperatures? | At low temperatures, gases have a low pressure because the particles have a lower kinetic energy so there are fewer collisions per second |
| Why do gasses have a high pressure at high temperatures? | At high temperatures, gases have a high pressure because the particles have higher kinetic energy so there are more collisions per second |
| What type of force do the particle collisions with the walls of the container act at? | The particle collisions with the walls of the container act at right angles to the walls of the container, which force causes the gas pressure |
| What happens when the volume of the container is increased but the temperature is constant? | When the volume of the container is increased but the temperature is constant the spacing between the particles is increased, so they travel much further before colliding with the walls of the container, reducing the number of collisions per second, and therefore reducing pressure |
| What does inversely proportional mean? | Inversely proportional means when one value increases the other decrease hat happens when the volume of the container is increased but the temperature is constant |
| What is the pressure of a gas inversely proportional to? | The pressure of a gas is inversely proportional to the volume, if the volume increases the pressure decreases |
| The is the equation for the pressure of a gas, and what does it mean? | The equation for the pressure of a gas = pressure (Pa) x Volume (m^3) = constant, and because the pressure x volume = constant if the pressure is doubled the volume must be halved |
| When is work carried out on a gas? | Work is carried out on a gas when an applied forced causes an energy transfer |
| What happens when a force is applied to a gas? | When a force is applied to a gas, work is done, so energy has been transferred to the gas particles, causing the internal energy of the gas increase |
| Why does the temperature of the gas increase when the internal energy increases? | The temperature of the gas increases when the internal energy increases because the internal energy contains potential energy and kinetic energy which the temperature of the gas is directly proportional to |
| Why do bicycle pumps get warm when they are used? | Bicycle pumps get warm when they are used to inflate tyres because work is being done on the gas, increasing its internal energy and therefore it’s temperature |
