5.16 Answers
1. What variable remains constant for this experiment? Volume
2. Explain in terms of the particles what happened to the pressure when the temperature increased When the temperature is increased, the average kinetic energy increases. Therefore, the particles hit the walls of the container with a greater force and more frequently. This increases the pressure.
3. Is the temperature proportional to the average speed? Justify your answer No; the line on the graph is not straight.
4. Is the temperature proportional to the average kinetic energy of the particles? Justify your answer Yes; the graph of temperature against the [average speed of the particles^2] is a straight line.
5. Why is the word 'average' used? Each particle in the container has different speeds and therefore, there is a range of kinetic energies but, on average, T α KE.
1. What variable remains constant for this experiment? Volume
2. Explain in terms of the particles what happened to the pressure when the temperature increased When the temperature is increased, the average kinetic energy increases. Therefore, the particles hit the walls of the container with a greater force and more frequently. This increases the pressure.
3. Is the temperature proportional to the average speed? Justify your answer No; the line on the graph is not straight.
4. Is the temperature proportional to the average kinetic energy of the particles? Justify your answer Yes; the graph of temperature against the [average speed of the particles^2] is a straight line.
5. Why is the word 'average' used? Each particle in the container has different speeds and therefore, there is a range of kinetic energies but, on average, T α KE.
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