Robert Sutherland
Most modern presentation software runs in the browser. At its core, that software is simply a GUI atop HTML and CSS. Why not try cutting out the middleman?
HS1 Physics1 Arranging Atoms
Intermolecular Forces
"Well we can model the case of a lonely electron, but that's not so nice. Life, and physics are more interesting when we consider interactions."
-- One of my college professors.
A Desolate Universe
* desolate - bleak, empty, barren.
Image a universe where there are only 5 atoms.
If the atoms are all of the same type and they must be connected in a line, how many molecules is it possible to make?
A Brighter Universe
So there are still only 5 atoms, but this time each is of a different kind. If they must be connected in a line, how many different types of molecules could you make?
We're Lucky to Have Patterns
Changes in Temperature
Energy, Temperature & Motion
Changes of State
Linear vs. Plateaued
Intermolecular Bonds
It takes energy to separate atoms.
Vending Machine Coke
If you ever find yourself stateside and you look at the display on a vending machine, you'll notice Coke is advertised as being 32° F, that's 0° C.
How is it possible to see liquid Coke at 0° Celsius? Wouldn't it freeze?
Practice Problem
l_{fusion} = 0.334\ \dfrac{kJ}{kg}\\
l_{vapor} = 2.260\ \dfrac{kJ}{kg}\\
Q = m \cdot l
How much energy does it take to boil a 100g ice cube?
(The ice cube starts at 0°C)
Practice Problem
How much energy does it take to boil a 100g ice cube?
c_{ice} = 2.108\ \dfrac{kJ}{kgC}\\
c_{water} = 4.187\ \dfrac{kJ}{kgC}\\
c_{steam} = 1.996\ \dfrac{kJ}{kgC}\\
Q = m \cdot c \Delta T
HS1 Physics1 Arranging Atoms
By Robert Sutherland
