Characteristics of Gas
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| vapors | the elements (that are usually solid or liquid) that exist in the gaseous state
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| What does the volume of gas equal? | volume of gas equals volume of its container
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| What happens when gases are mix together | gases form homogenous mixtures with each other regardless of the identities or properties of the component gases
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| What are the measured properties of a gas? | temperature, volume, pressure
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| Pressure = ? | Force/Area
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| Force = ? | mass * acceleration
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| gravity exerts an acceleration of ? | 9.8 m/s^2
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| 1 Newton =? | kg*m/s^2
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| What is the SI unit of pressure? | Nm^ -2 (called a pascal (Pa) )
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| 1 Pa (pascal) = ? | 1 N (newton)/m^2
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| The atmospheric pressure at sea level is about | 100 k Pa
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| barometer | measures atmospheric pressure
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| atmospheric pressure =? | 1.01325 * 10^5 Pa
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| Other units of pressure: | 1atm = 760mmHg = 760torr = 1.01325 * 10^5 Pa = 101.325 kPa
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| 1 torr = ? | 1 mm Hg
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| manometer | (contains mercury) used to measure the pressure of an enclosed gas.
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| Gas laws | equations that tells the relationship among P, T, V, and n
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| Pressure -Volume Relationship: Boyle's Law | Volume of gas is inversely proportional to the pressure (as pressure decrease, volume increase, and vice versa)
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| PV = ? | constant (the value of the constant depends on the T and the amount of gas in the sample)
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| Temperature - Volume | (blank)
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| 0 degree K =? | -273.15 C
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| Volume/Temp. =? | constant (value of constant depends on the pressure and amount of gas)
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| The Quantity - Volume Relationship: Avogadro's Law | volume of gas is proportional to the # of moles of the gas
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| Law of Combining Volumes (discovered by Lussac) | (blank)
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| 1 mole of any gas (6.02 * 10^23 gas molecules) at atm. pressure and 0 degree C occupies (blank) liter volume | 22.4
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| V = ? | constant * n
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