In an experiment designed to examine the relationship between the volume of a sample of air and its pressure, the sample’s volume is reduced and its pressure is measured continuously. Curve X on the graph shows the results that would be expected for a fixed mass of air at constant temperature. Curve Y shows the results obtained in this particular experiment. Which row gives two possible reasons why curve Y differs from curve X?
- A1 the temperature of the air increases as the volume is decreased; 2 air leaks into the container as the volume is decreased
- B1 the temperature of the air increases as the volume is decreased; 2 air leaks out of the container as the volume is decreased
- C1 the temperature of the air decreases as the volume is decreased; 2 air leaks into the container as the volume is decreased
- D1 the temperature of the air decreases as the volume is decreased; 2 air leaks out of the container as the volume is decreased