Chemistry · Oct / Nov 2024 · Paper 11 · Question 1
Which row shows both a property of a gas and the correct explanation for this property?
- AGases flow easily. | The bonds within the molecules are weak.
- BThe pressure of a sample of gas increases when the volume is decreased. | The particles collide more frequently with the walls of the container.
- CThe volume of a sample of gas increases when the temperature is increased. | The particles in a gas are far apart.
- DThe spread of perfume particles is due to diffusion. | Diffusion is the movement of particles from an area of low concentration to one of high concentration.
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Correct answer: B. The pressure of a sample of gas increases when the volume is decreased. | The particles collide more frequently with the walls of the container.
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