Chapter 17: Molecules and Idea Gases Flashcards
What is Brownian motion?
The random motion of particles in gas
What is absolute zero?
-273°C
How do you convert Kelvin to Celsius?
Kelvin = Celsius + 273
What is the relationship between Kelvin temperature and the average kinetic energy of the molecules of a gas?
Kelvin temperature is proportional to the average kinetic energy of molecules in a gas.
How do you observe Brownian motion?
By using a microscope to view the movement of a particle.
What is the pressure law?
For a fixed mass of gas at a constant volume, pressure is proportional to temperature in Kelvin.
What is the equation for the pressure law?
Pressure/Temperature = Constant
What is Boyle’s Law?
For a fixed mass of gas at a constant temperature, pressure is inversely proportional to volume.
What is the equation for Boyle’s Law?
Pressure x Volume = constant
How can you use the pressure law in equations?
P1/T1 = P2/T2
How can you use Boyle’s Law in equations?
P1xV1 = P2xV2
What effect does temperature have on the motion of particles in a gas?
As the temperature increases, there is also more kinetic energy, and so the gas particles vibrate more and move around more.
How does the motion of gas particles exert a force on the walls of a container?
The gas particles collide with the walls of the container randomly, exerting a force on the walls, and making them change direction.
