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# Chemistry Chapter 6

### gas laws

What is volume? How much space matter occupies.
What is the formula for Pressure? P = F X A
How do you increase the pressure of a gas in a container? Either add more gass, decrease the volume of container, or heat the container up.
What is the name of the device used to measure atmospheric pressure? barometer
What is the SI unit for pressure? pascal
What is a system with zero pressure known as? a vacuum
What is STP? Standard Temperature Pressure
What is the standard pressure of a gas in kPa? 101.325 kPa
What is the standard pressure of a gas in atm? 1 atm
1kPa = ? Pa 1000 Pa
1kPa = ? atm .009869 atm
1kPa = ? bar .01 bar
1kPa = ? torr 7.501 torr
1 kPa = ? mm Hg 7.501 mm Hg
1 kPa = ? psi .145 psi
What is a device used to measure pressure of a confined gas? manometer
What is the individual pressure of a gas called? partial pressure
What is the equation for Dalton's Law of Partial Pressure? PTotal = Pa + Pb + Pc
What is absolute zero? 0 K
How do you convert from degrees Celsius to Kelvin? add 273
Why is 0 K known as absolute zero? That is the temperature where an ideal gas can no longer condense and is the lowest temperature possible.
What is the formula for Charles's Law? Vi/Ti = Vf/Tf
What is the formula for Boyle's Law? PiVi = PfVf
Is Charles's Law a direct proportion or an inverse proportion? direct
Is Boyle's Law a direct proportion or an inverse proportion? inverse
What law states that whenever gases react under the same conditions of temperature and pressure, the volume ratios of the reactants can be expressed as simple whole numbers. Law of combining volumes
What is Avogadros principle? equal volumes of gases contain equal numbers of particles
What is the formula for Avogadro's principle? Vi/ni = Vf/nf
A gas occupies a volume of 100 cm3 at a temp of 200 K. What is volume if gas has a temp of 150 K. 75 cm3
A sample of gas has volume of 2.25 dm3 and a temp of 298 K. What is the volume if the gas has a temp of 373 K? 2.82 dm3
A sample of gas has a volume of 275 cm3 and a temp of 273K. What is the temp if the new volume is 325 cm3. 323 K
If the atmospheric pressure is 99.4 kPa and the water vapor pressure is 4.5 kPa then what is the partial pressure of the oxygen gas? 94.9 kPa
If a gas has a volume of 25dm3 and a pressure of 100 kPa, what is the volume of the gas at 75 kPa? 33 dm3
As the temperature increases, the rate of motion of gas molecules________. increases
To determine the gas pressure using a manometer, you need to measure the _______. difference in the height of the two columns of mercury
Which law describes the relationship between the volume and temperature of a gas? Charles's Law
Which law describes the relationship between volume and pressure? Boyle's Law
According to Avogadro's principle, equal _______ of gas at the same temperature and pressure contain equal numbers of particles. volumes
Created by: jjautry3