AP Chemistry 3.5 Structure and Arrangement of Atoms
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AP Chemistry 3.5 Structure and Arrangement of Atoms. Which of the following is true regarding solids?
|AP Chemistry||Chemical and Physical Properties from Structure and Arrangement|
Structure and Arrangement of Atoms
|Test Prep||AP Chemistry|
Let's start at the top with (A).
(A) just means that all the stuff in a solid is in a very small space.
Does that seem true?
Well, if you’ve ever vaporized anything in the microwave, let’s say a grape, you [A microwave and a bunch of grapes appear]
probably know that if you put a solid object in and heat it to make a gas or a plasma,
it will often expand to fill the microwave. [Microwave explodes and grapes hit a man in the face]
Not that…we've tried this before….ahem.
Anyway, it seems like A might be a reasonable choice, so we'll come back to it. [Car drives down a road]
The next answer says that solids have the highest average kinetic energy relative to
liquids and gases.
Average kinetic energy is what temperature measures. [Thermometer gauge rising]
A high temperature means a high average kinetic energy, and a low temperature means a low
average kinetic energy.
This means the question is actually asking us if solids are generally hotter than liquids [A log of wood, rain and gas]
Although having gas is not hot when you’re on a date, gases themselves are the hottest [Man farts walking through a park with a girl]
state of matter on average.
We don’t know how they fare in online dating… [Mobile phone with a Tinder picture of a gas]
Solids are colder than both liquids and gases in fact, so we can cross off choice B right away.
Let’s move on to answer C, which says that the particles are in a randomly assorted 3D
structure, brought to you by Oculus [An oculus rift AI headset]
As much as your Lego kit at home may be in disarray, the atoms within each Lego piece [Boy surrounded by lego pieces]
should be arranged fairly regularly compared to a liquid or a gas….unless you’ve run
your Legos through a particle accelerator. [Pieces of lego shooting through a particle accelerator]
Maybe you have, maybe you haven’t.
…Don't try that at home either.
So answer C is off the table.
Moving on to answer D. [Car drives past a sign labelled 'D']
This next statement says that solids have a definite volume from an indefinite shape.
If you take a sugar cube as an example, you can see that a solid has a very definite volume
as well as a definite shape. [A sugar cube in a kitchen]
if you pound the cube into dust, it still has a definite shape. [Hammer smashes sugar cube to dust]
It’s just gone from a cube to an amorphous pile of dust that has no geometric name.
So answer D is off the table because indefinite shape does not describe solids.
That leaves us with our original answer A, that solids constitute a condensed state of
So it looks like nothing was the matter with answer A… [Guys cheering in a pub]
…We'll see ourselves out.