Gas Laws
The volume of a gas is directly proportional to its temperature at constant pressure. What does this mean?
As one increases the other will increase at the same rate. The graph will show a straight line.
Why do truck drivers need to monitor and adjust tire pressure on long trips during the summer?
As the temperature increases, so does the pressure of the air inside the tires.
Describe Boyles law.
Boyle's law is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases.
This is a graph of Charles law. The data points form a straight line, showing that the volume of a gas is _______ proportional to the temperature.
Directly
Gas pressure is inverse proportional to volume at constant temperature. What does this mean?
For a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional.
How does adding thermal energy affect a gas?
It gets warmer and the pressure it exerts on its container increases.
If the sun shining through a window heats the air in a sealed room, what happens to the air pressure in that room?
It increases.
3 properties of gas that you can measure are: temperature, volume and pressure. In order to study the relationship between 2 of these, what must be done to the 3rd?
It must be kept constant.
If a gas is at constant volume, what will happen to the pressure when the temperature decreases?
It will decrease.
Let's say you want to blow up an object using a pump. As you push down on the plunger, you are adding pressure. What will happen to the volume of air inside the pump?
It will decrease.
You have a helium-filled balloon and you decide to heat it to see what would happen. Describe what you observe.
It will expand.
If you were to blow up a balloon indoors and then take it outdoors on a cold day, what would you observe?
It will shrink.
Describe Charles Law.
When the temp of a gas at constant pressure is increased, its volume increases. when the pressure of a gas is constant pressure is decreased, its volume decreases.
Fill in the blank with either Increases or decreases: A) If the volume is constant and the temperature increases, the pressure ________. B) If pressure is constant and the temperature increases, volume _________. C) If temperature is constant and pressure increases, the volume _________.
increases, increases, decreases
What effect does increasing pressure have on gas particles.
The temperature will increase.
