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Unit 5A Vocabulary

TermDefinition
Kelvin temperature A scale which starts at absolute zero, where kinetic energy is zero meaning molecules are not moving.
Pressure Force per unit area
Ideal gas Gas particles take up no space and exchange no energy when they collide.
Volume A measure of the amount of space something occupies.
Temperature A measure of the average kinetic energy of a particle.
Kinetic Energy Energy that an object has because it is moving.
Constant A fixed or unchanging value.
Directly Proportional 2 variables that move in the same direction. Example: If Temperature increases, volume increases.
Inversely Proportional 2 variables that move in the opposite direction. Example: If pressure goes up, volume goes down.
Molar Mass The mass, in grams, of 1 mole of a substance. Found on the periodic table.
Mole The SI unit to measure amount of a substance. 1 mole of any substance contains 6.02 x 10^23 particles.
STP Standard temperature and pressure; 273 K and 1 atm
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