CHEMISTRY
The value of the gas constant is...
0.0821 L*atm/mol*K
A sample of helium gas has a volume of 250.0 mL when its pressure is 0.935 atm. if the temperature remains constant, what will the pressure of the be when it has a volume o 175.0 mL
1.34 atm.
A 10.2-L canister of oxygen gas contains 58.6 mol of gas at a temperature of 25.0. What is the pressure of the gas?
141 atm
What is the ratio of the rate of effusion of helium (atomic mass 4.00 amu) to that of oxygen gas (molecular mass 32.0amu)?
2.83
You collect 552 mL of argon gas at 23.0 C. What volume will the gas occupy at 46.0C if the pressure remains constant?
595 ML
Hydrogen gas is collected by water displacement. If the barometric pressure is 752.0 torr and the water vapor pressure is 17.5 torr, what is the partial pressure of the hydrogen collected?
734.5 torr
Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules..
Avogadro's Law
The volume of a fixed mass of gas varies inversely with the pressure at constant temperature...
Boyle's Law
The volume of a fixed mass of gas varies directly with the kelvin temperature at constant pressure
Charles's Law
The relationship between pressure, volume, and temperature is expressed by this law...
Combined Gas Law
The total pressure of a mixture of gases is equal to the sum of the partial pressure of the component gases..
Dalton's Law
The pressure of a fixed mass of gas varies directly with the kelvin temperature at constant volume is..
Gay-Lussac's Law
At constant temperature and pressure, the volumes of gaseous reactants and products can be expressed as ratios of small whole numbers...
Gay-Lussac's Law of combining volumes
The rates of effusion of gases at the same temperature and pressure are inversely proportional to their molar masses
Graham's law
Which of the follow expressions relates the kelvin and Celsius temperature scales?
K=273.15+C
Which of these gases effuses the slowest under the same conditions?
NO2 (because biggest)
Suppose that two unlike gases are injected into opposite ends of a long tube at the same time allowed to diffuse toward the center. They should begin to mix...
between the end where the heavier gas entered and the middle.
The passage of gas particles through a small opening is called...
effusion
Pressure times volume equals molar amount times 0.0821 L*atm/(mol*K) times temp in Kelvins
ideal gas law
At constant temperature and pressure, gas volume is directly proportional to the..
number of moles of gas.
Equal volumes of ideal gases at the same temperature and pressure contain equal numbers of...
particles
If the temperature of a gas remain constant, then the pressure of the gas will increase if the..
size of the container is decreased.