Ideal Gas Boyles Law Flashcards
What are we investigating
Increase pressure , and see if volume increases too
How to set up equipment
Tube connected to pressure gauge
With volume for scales
Why must increase pressure slowly ! Decrease volume slowly?
So TEMPERTAURE is kept constant and work isn’t done on thr parricles
What could happen at high tempertaures if varying temperature by putting in a bath
What could happen is that the pressure too high that volume of air would start leaking
Alternatively how to increase temp of water bath to fixed volume
Increase temp, measure pressure with pressure garage and thermometer
Remember every time you use water bath
Will be lag time begwene temleturr if gas and water, so give time
Remove heating source, stir for 30 s then measure, or somehow measure directly
How to find absolute zero
Extrapolate to when pressure 0, use gradient of lime
What happens at absolute zero
Pressure is 0, volume 0, internal energy minimum, ke is 0
Instead of increasing temp how to decrease
Boil to specific temp, then see pressure , then cool down with ice and record pressure changes
Work done by a gas?
Pressure x volume
