Kinetic Molecular Theory Flashcard

Front

What is the Kinetic Molecular Theory?

Back

The Kinetic Molecular Theory explains the behavior of gases in terms of particles in constant motion, emphasizing that gas pressure results from collisions of particles with the walls of their container.

Front

What is gas pressure?

Back

Gas pressure is the force exerted by gas molecules when they collide with the walls of a container.

Front

What is the first postulate of the Kinetic Molecular Theory?

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Gas particles are in constant, random motion.

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What is the second postulate of the Kinetic Molecular Theory?

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Gas particles are mostly empty space, which allows them to be compressed.

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What is the third postulate of the Kinetic Molecular Theory?

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The pressure of a gas is caused by the collisions of gas particles with the walls of the container.

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What is the fourth postulate of the Kinetic Molecular Theory?

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Gas particles have negligible interactions with each other, meaning they do not exert significant forces on one another.

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How does temperature affect gas pressure?

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Increasing the temperature of a gas increases the kinetic energy of its particles, leading to more frequent and forceful collisions with the container walls, thus increasing pressure.

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What is kinetic energy in the context of gas particles?

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Kinetic energy refers to the energy that gas particles possess due to their motion; it is directly related to the temperature of the gas.

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How can you rank the kinetic energy of gas samples?

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Gas samples can be ranked based on their temperature; higher temperature indicates higher kinetic energy.

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What is the relationship between gas volume and pressure?

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According to Boyle's Law, at constant temperature, the pressure of a gas is inversely proportional to its volume.