vocab
What is the force exerted by gas molecules colliding with the surfaces of objects?
Pressure
Which law describes the relationship between pressure and Volume; if the pressure incr. then the volume decreases?
Boyle’s Law
The ideal gas constant (R) depends on the?
units used
what is R?
0.0821
what is caused by the force exerted by gas molecules colliding with the surfaces of objects?
Gas pressure
What is the amount of space occupied by the gas?
Volume
When pressure is constant, as the temperature of a gas increases, the molecules move faster and its volume increases to maintain constant P which law does this relate to?
Charles’s Law
STP conditions are how many degrees and how many atm?
0°C and 1 atm
Absolute zero is the temperature at which?
Particle motion theoretically stops
what does the kinetic molecular theory state that gas particles do?
The volume of the gas is considered the volume of the container holding it
What is the number of gas particles in a system?
Moles
What law relates pressure and temperature when volume is constant, an increase in temperature increases the pressure of a gas?
Gay-Lussac’s Law
What particles at what level are far away from each other, constantly moving, and randomly bumping into each other and the walls of the container?
Gas particles at a molecular level
The combined gas law includes which variables?
P, V, and T
Avogadro’s Law states that equal volumes of gases at the same temperature and pressure contain equal what?
number of molecules
what is the average kinetic energy of the gas particles?
Temperature
In Boyle’s Law – as pressure increases, volume?
decreases
Gas pressure is caused by what?
Collisions with container walls
Which assumption is made for ideal gases?
Collisions are elastic (they bump off of each other)
As temperature increases, the average kinetic energy of gas particles?
Increases, because the particles move faster
what is a glass tube that is closed at one end, filled with a nonvolatile liquid such as mercury, and then inverted and immersed in a container of that liquid?
barometer
Increasing temperature at constant pressure causes volume to?
increase, because the volume of a gas is directly proportional to its absolute temperature
If the number of moles increases at constant volume and temperature, pressure will?
increase to maintain equality
What is caused by the weight of the column of air molecules in the atmosphere above an object?
Atmospheric pressure
Which variables must remain constant in Boyle’s Law?
temperature and moles