Chapter 13-Finals Flashcards
(16 cards)
Compressibility definition
a measure of how much the volume of matter goes down under pressure
What can a gas expand to fill?
A gas can expand to fill its container
Can gasses be compressed so that they occupy less volume?
Yes
What are the variables to describe a gas
Pressure
Volume
Temperature
Number of moles
What letter represents Pressure, and what is it measured in?
Pressure, P, in kPa
What letter represents volume, and what is it measured in?
Volume, V, in L
What letter represents temperature, and what is it measured in?
Temperature, T in K
What letter represents number of moles, and what is it measured in?
Number of moles, n in g
3 variables that affect the pressure of a gas
Volume, temperature and number of moles
Volume definition
the amount of space an object occupies
Pressure definition
the force per unit area exerted by a confined gas
What is pressure due to?
It is due to the simultaneous collision of billions and billions of gas particles with the walls of the container
Boyles law
at constant temperature, the volume of a confined gas varies inversely with its pressure
What happens as the average KE of a collection of gas particles increases?
When the average KE of a collection of gas particles increases, the temperature increases
Gay-Lussac’s law
Assuming constant volume, as the pressure of a confined gas increases its kelvin temperature also increases, and vice versa.
Charles’s law
At constant pressure, the volume of a confined gas varies directly with its kelvin temperature
