What happens to the motion of gas particles when the temperature decreases?
Question
What happens to the motion of gas particles when the temperature decreases?
Solution
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Gas particles are in constant, random motion. This motion is directly related to the temperature of the gas.
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When the temperature of a gas decreases, the kinetic energy of the gas particles also decreases. Kinetic energy is the energy of motion, so when it decreases, the motion of the gas particles slows down.
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As the motion of the gas particles slows down, the particles begin to move closer together. This is because they are not moving fast enough to overcome the attractive forces between them.
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The decrease in temperature and subsequent slowing of particle motion can also lead to a decrease in pressure, assuming the volume of the gas is kept constant. This is due to the fact that there are fewer collisions between the gas particles and the walls of the container.
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If the temperature continues to decrease, the motion of the gas particles may slow down to the point where the gas condenses into a liquid or solid state.
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In summary, when the temperature of a gas decreases, the motion of the gas particles slows down, they move closer together, and the pressure of the gas decreases.
Similar Questions
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What happens to a gas when the temperature decreases?It expands.It rises.It condenses.It becomes less dense.
Which concept explains that an increase in temperature results in an increase in the average velocity of particles?
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