After the in class test run, we decided to reevaluate certain design decisions. The major
change between the prototype and and the final design was the dimensions of the outer box. The
original outer box had the dimensions of 24 x 24 x
Whether two substances mix depends on 2 factors:
The relative strength of A-A, B-B, A-B interactions.
Particles are more likely to adopt those states where the
IMFs between them are stronger (lower Ep)
Depends on how mixing affects:
Pe of a system
Determining Structure; Analyzing Light-Matter Interactions
Much about what we know about the structure of molecules and atoms is
derived from the analysis of light, EM radiation, with the substances of interest.
1. The potential energy of the different states available to the system.(systems will want to
move towards chaos)
LIQUID TO GAS
LowerEp;Fewer #C(liquid like configuration)
Higher Ep;Larger # of configurations(gas like configurat
Pressure# of collisions
Force of collisions
Where from/Where to?
Indirect measurements: atoms and molecules have masses and sizes so small that cannot be
At a the substance is a gas. It does not change phases between a and b b ut PE increases.PE
decreases,kE decreases, from b to c the substance changes(condensates) from a gas to a liquid.
It does not change between c and d but ke decreases and PE decreasin