Sunday, October 7, 2012

Unit 3, Lessons 13 and 14

Lesson 13:

Sometimes all the variables in your sample of gas change. Say that your pressure increased or decreased, making for a rise or drop in temperature, and that influenced the sample's volume. What ever would you do to find that one missing piece? You'd use the Combined Gas Law, of course, which is as follows:

k = P(V) / T

Typically, we see this formula being used to solve equations like what I've described; the need to find a volume. It can also be called for in altitude problems, where say a balloon has risen to a higher altitude than sea-level and the pressure has changed.

Problems:

(WILL BE ADDED LATER)

Lesson 14:

We've already found out that warm and cold fronts are associated with different kinds of weather, but whether you have a sunny day or a rainy day is also dependent upon what the air pressure is. Areas of low pressure are, as you could probably guess, associated with colder temperatures and more snow/rain. This happens because the cold air means that particles move slower, which allows for condensation, then clouds, and eventually precip. High pressure areas are warmer, sunnier, and more pleasant. When high and low pressure areas meet, the high pressure air rises above the denser cold pressure air.

Problems:
(WILL BE ADDED LATER)

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