1. Temperature and Volume
Charles’ Law
Temperature and Volume

2. Absolute Zero
From your graph, what value did you find for a volume of zero?
This temperature is absolute zero, the lowest possible temperature.
A theoretical temperature at which matter has no kinetic energy (volume of 0) and therefore transmit no thermal energy. ˚C

3. Temperature Scales
Anders Celsius devised a scale by taking a thin glass tube filled with mercury and recording the height of the liquid in ice cold water.
He repeated the process by putting it in boiling water.
He divided the distance between the 2 heights into 100 divisions = 1˚C
Lord Kelvin devised a new scale that would have no negative values.

4. Temperature Scales
1˚C = 1 K
˚C = K
K = ˚C

5. Temperature (in Kelvins) is directly proportional to volume
Charles’ Law
As the temperature of a gas increases, the volume increases proportionally, when pressure and amount of gas (moles) remains constant.
Temperature (in Kelvins) is directly proportional to volume
A direct relationship
V = kT
k = v/t
Vi = Vf
Ti = Tf

7. Homework
Read p
P. 432 #12-14
P. 434 #16-18