gas Ideal particles:
1. Are volumeless
2. Strike each other with elastic collisions
3. Have no attraction to one another
Real gases approach pv=nrt behavior under LOW pressure and HIGH temperature
Low P: the particles volume is less significant
High T: high KE reduces attractions, makes collisions more elastic
This is where vaaderwaals equation comes in; modification of ideal gas law that fits more
real gas behavior
P + a (n/V)2 x (V nb) = nRT
Accounts for interactions among gas particles
Gases with weak intermolecular forces have low values of a
P corrected for intermolecular forces
V corrected for gas volume; subtracts the volume of gas molecules generally
increases themselves; with the size of the molecule
Exam covers 4 and 5 EXCEPT gas forming reactions and 5.11
Energy: capacity to do work
Work: force acting over a distance
Potential energy: energy stored due to position or composition
Kinetic energy: energy due to motion of an object
When delta E is negative; thats from systems perspective
Lose energy = negative
Gain energy = positive
J = the energy needed to move 1 kg mass 1 m
Calorie: energy needed to raise 1 g of water 1 C
The total energy of the universe is constant or energy is neither created nor destroyed
Energy can be transferred between objects; from one form to another