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14 Cards in this Set
- Front
- Back
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What is kinetic energy proportional to?
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Temperature
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What does particle theory state that gases consist of?
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Very small particles which are constantly moving in completely random directions.
All matter is made of tiny particles. The particles are atoms, ions or molecules. In a liquid or gas, the particles move at random. |
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Do the particles take up much space?
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No, most of the gas is empty space
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What happens to the particles?
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They constantly collide with each other and the walls of their container
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What happens if you increase the temp of a gas?
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You give its particles more energy. The average speed of the particles increases. Anything moving has kinetic energy
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What is Bownian motion?
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The random motion of particles is called Brownian Motion. pollen grains in water.
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What happens to the particles if you increase the temp of something?
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they move about more quickly or vibrate more
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What happens if you cool a substance down?>
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You reduce the kinetic energy of the particles
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What's the coldest temp that you can have?
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-273 degrees c (Absolute zero)
At this temp the particles have as little kinetic energy as is possible |
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What is the start of the Kelvin scale of temp?
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Absolute zero!!
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How do you convert from degrees celsius to kelvin?
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Add 273
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Convert from kelvin to degrees celsius?
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Subtract 273
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So, what is boiling point in degrees celsius and kelvin
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100 degrees C
and 373 kelvin |
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What happens if you double the temperature (Kelvins) ? PAPER 2
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You double the average kinetic energy of the particles.
THE TEMP OF GAS (KELVINS) IS PROPORTIONAL TO THE AVERAGE KINETIC ENERGY OF ITS PARTICLES |
