Gas Vocab
average kinetic energy (speed) of a gas molecules is directly propotional to this
What is temperature?
The relationship between an ideal gases pressure and voluem when temperaruture is held constant
What is Inversely proportional (As one increases, the other decreases)?
A sample of oxygen gas collected in the lab occupies a volume of 250. mL when its pressure is 0.95 atm mmHg. What volume will the gas occupy at a pressure of 1 atm if the temperature is held constant?
What is 237 mL
An imaginary gas that conforms perfectly to all the assumptions of the kinetic theory of gases
What is an Ideal Gas?
the sum of the individual pressures of the gases mixed together in the atmosphere. At sea level it is 101.3 in kPa
What is atmospheric pressure?
Number of collisions of the molecules with their container surface per unit time
What is pressure?
At a constant pressure, the relationship between a gases Volume and Temperature
What is directly proportional (if one increases, so does the other and vice versa)?
A sample of neon gas occupies a volume of 742 mL at 35˚C. What volume will the gas occupy at 60˚C if the pressure is held constant?
What is 802 mL
- Particles travel in straight random pathways
- Particles have a finite and measurable volume
- Particles are inert and do not attract or repel each other
the one above that is NOT a property of an ideal gas
What is particles have a finite and measureable volume?
The SI or metric unit of pressure
What is kilopascals or kPa?
Defined as 273 Kelvin or 0˚C and 1 atmosphere or 101.3 kPa.
What is STP (standard temperature and pressure)?
At constant Volume, if I increase P, this happens to T
What is increase?
A 8.3 L gas sample at standard pressure is compressed to a volume of 2.8 L and the temperature is increased from 30˚C to 65˚C. What is the new pressure of the gas in atms?
What is 3.3 atm
Gases consist of larger number of tiny particles, particles of a gas are in constant motion, the collisions between particles and their container are elastic, theare are no attractive or repulsive forces between gas particles, and the average kinetic energy of the particles of a gas is directly proportional to the Kelvin temperature of the gas.
What is the Kinetic Molecular Theory of Ideal Gases?
Defined as an applied force over a given area (F/A)
What is Pressure?
The amount of space that a gas occupies.
What is volume?
The gas law for changing conditions of a fixed number of moles of a gas.
What is the Combine Gas Law?
A gas is at 423 kPa at 30oC with a volume of 5.4 L. If the conditions are brought to STP, what is the new volume?
What is 20.3 L?
Real vs. Ideal: 1.) Particles of a gas occupy space and have mass. 2.) Particles of a gas exert attractive forces on one another.
What is a Real Gas?
Of the following, the one that will not make a real gas more ideal:
- Add more particles to a fixed volume container
- Increase the container's volume
- Increase the temperature
- Remove particles from the gas
What is add more particles?
The R stands for what in the Ideal Gas Law.
What is the Ideal (Universal) Gas Constant
What is mass of chlorine gas in grams contained in a 15.0 L tank at 23˚C and 3.78 atm of pressure?
What is 166 g
The more (blank) a gas molecule is, the farther it deviates from ideal behavior.
What is Polar?
Of the following, the one that will diffuse the fastest in constrained volume with no other outside forces; He, CO2, C5H12 (Pentane).
What is He?