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### 17 Cards in this Set

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• Back
 gas particles are so small in relation to the distances between them that their individual volumes can be assumed to be insignificant what does the large relative distances between the gas particles mean that there is a considerable empty space between the particles the assumption of gas particles being far apart explains the important property of gas compressibility the measure of how much the volume of matter decreases under pressure compressibility gases are easily compressed because of the space between the particles because gases are comprssible, thy are used in automobile airbags and other safety devices to absorb the enrgy of an impact the energy of a collision is absorbed when the gas particles are forced close together gases can be used to absorb a considerable amount of energy what is the second property of gas particles assumed by the kinetic theory no attractive or repulsive force exist between the particles the fact that no attractive or repulsive force exist between the particles results in gases being able to be free to move inside their containers a gas expands until it takes the shape and the volume of its container what is the third assumption of gas particles assumed by the kinetic theory gas particles move rapidly in constant motion the particles travel in straight paths and move independently of each other only when a particle collides with another particle or object does it deviate from its straight-line path kinetic theory assumes further that these collisions between gas particles are perfectly elastic, which means that during a collision the total amount of kinetic energy remains constant and that the kinetic energy is transferred without loss from one particle to another the avrage kinetic energy of a collision of gas particles is directly proportional to the Kelvin temperature of the gas what are the four variables used to describe a gas pressure (P) kilopascals volume (V) liters temperature (T) Kelvins moles (n)