P1.3.2 - Pressure And Volume Flashcards
1
Q
What is the relation between volume and pressure?
A
Inversely proportional
Volume Doubles = Pressure Halves
Pressure Doubles = Volume Halves
2
Q
Why are pressure and volume inversely proportional?
A
Collisions of gas particles produce a force at a right angle to the surface.
If you halve the volume you double the number of collisions
3
Q
What is the equation involving pressure and volume and how do you use it?
A
Pressure X Volume = Constant
(Pa) (M^3)
1) Work out the constant using given values
2) Reareange to work out either volume or pressure
3) Sub in new values and work out
