An increase in temperature causes an increase in pressure of a gas in a fixed volume due to an increase in the?
number of molecules of the gas
density of the gas molecules
number of collisions between the gas molecules
number of collisions between the gas molecules and the walls of the container
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The correct answer is:
D. number of collisions between the gas molecules and the walls of the container
Explanation:
In a fixed volume, when temperature increases, the gas molecules gain more kinetic energy and move faster. This results in more frequent and more forceful collisions with the walls of the container, which leads to an increase in pressure.
C refers to internal collisions between molecules, which doesn’t directly affect pressure. Pressure is defined by how often and how hard the molecules hit the walls of the container.
Correct answer: D. number of collisions between the gas molecules and the walls of the container
