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35 Cards in this Set
- Front
- Back
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what are the physical characteristics of gases
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assume the volume and shape of their containers
the most compressible of the states of matter will mix evenly and completely when confined to the same container have much lower densities than liquids and solids |
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the change in distance with elapsed time
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velocity
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tiondistance moved/elapsed time
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velocity
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the change in velocity with time
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acceleration
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change in velocity/ elapsed time
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acceleration
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mass X acceleration
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force
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what is the SI unit of force?
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newton
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1kg m/s^2
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newton
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force applied per unit area
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pressure
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force/ area
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pressure
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what is the SI unit for pressure
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pascal (Pa)
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1 N/m^2
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pascal (Pa)
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the weight of the column of air above it
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force
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the pressure exerted by Earth's atmosphere
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atmospheric pressure
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the instument for measuring atmospheric pressure
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barometer
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the pressure that supports a column of mercury exactly 760 mm (or 76 cm) high at 0degree C at sea level
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standard atmospheric pressure (1 atm)
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what is the standard atmospheric pressure
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1 atm
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a device used to measure the pressure of gases other than the atmosphere
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manometer
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what are the two typbe of manometers
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closed tube manometer and open tube manometer
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the pressure of a fixed amount of gas at a constant temperature iis inversely proportional to the volume of the gas
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boyle's law
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p1v1 = p2v2
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boyle's law
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what is the temperature for absolute 0
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-273.15 degree C or 0K
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what is the absolute temperature scale
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Kelvin temerature scale
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on the kelvin scale 1 K is equal in
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magnitude to one degree Celsuis
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the volume of a fixed amount of gas maintained at constant pressure is directly proportional to the absolute temperature of the gas
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gay-lussac's or charles's law
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v1/t1 = v2t2
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charles' law
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p1/t1 = p2/t2
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gay lussac law
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at constant pressure and temperature, the volume of a gs is directly proportional to the number of moles of the gas present
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avogadro's law
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the proportionality constant
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gas constant (R)
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relationship among the four variables P,V,T and n
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ideal gas equation
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hypothetical gas whose pressure-volume-temperature behavior can be completely accounted for by the ideal gas equation
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ideal gas
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Pv = nRT
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ideal law
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p1v1/t1 = p2v2/t2
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combined law
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the pressures of individual gas components in the mixture
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partial pressures
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the total pressure of a mixture of gases is just the sum of the pressures that each gas would exert if it were present alone
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dalton's law of partial pressures
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