Questions and Answers
What happens when a substance is heated?
The atoms/molecules gain energy and move faster.
What is the relationship between temperature and the speed of atoms/molecules?
Temperature is a measurement of the average speed of atoms/molecules.
What happens to the volume of a substance when it is cooled?
The volume decreases as the atoms/molecules get closer together.
How do the collisions of atoms/molecules change when a substance is warmed?
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What is the relationship between temperature and the movement of atoms/molecules?
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An increase in the number density of gas particles will result in higher pressure.
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In a gas, the mean free path decreases as the pressure increases.
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Gaseous particles move slower and collide less frequently as the temperature increases.
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At low pressures, like those found in outer space, the mean free path of gas particles is typically small.
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The ideal gas law is not relevant for describing the relationship between the number density of gas particles and pressure.
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Gases exhibit an increase in viscosity with increasing temperature.
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In gases, diffusion occurs at a slower rate compared to liquids.
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Intermolecular forces have no role in determining the behavior of gaseous particles.
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Hydrogen bonding does not lead to unique behaviors in gases.
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Gaseous particles cannot interact with electromagnetic radiation.
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