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Structure and Arrangement of Atoms Videos 9 videos

AP Chemistry 1.5 Structure and Arrangement of Atoms
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AP Chemistry: Structure of Atoms Drill 1, Problem 5. What is the hybridization of the carbon atom in the Lewis structure?

AP Chemistry 2.5 Structure and Arrangement of Atoms
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AP Chemistry 2.5 Structure and Arrangement of Atoms. Under which of the following conditions would a real gas behave more like an ideal gas?

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?

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AP Chemistry 2.5 Structure and Arrangement of Atoms 22 Views


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AP Chemistry 2.5 Structure and Arrangement of Atoms. Under which of the following conditions would a real gas behave more like an ideal gas?

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Transcript

00:00

Thank you We sneak Here's your smoke do sure brought

00:05

to you by ideal gases if they're not ideal maybe

00:09

it's just a phase they're gone through and you know

00:11

get better over time Here's our question under which of

00:14

the following conditions what a real gas behave more like

00:16

an ideal gas And here are potential answers All right

00:20

Well if all our ideal circumstances came true we'd ride

00:23

our unicorn to work as a professional nap taker and

00:26

collect our six figure salary at the end of the

00:28

day But the hard truth is ideal Circumstances are rarely

00:31

reality It's true in our dreams of unicorn transportation and

00:35

it's especially true in chemistry and ideal gas is one

00:38

that behaves in a predictable mathematical fashion when the temperature

00:40

pressure amount of gas or volume of gas changes following

00:44

what is called the ideal gas law pressure times volume

00:47

equals number of moles times a calculated gas constant our

00:50

times the temperature So what makes the ideal gas law

00:53

fail in reality forces of attraction between gas molecules When

00:58

gas molecules are attracted to each other they spent too

01:01

much time together and don't move around as much making

01:03

their behaviour less ideal Forces of attraction between gas molecules

01:08

are short range so the farther apart molecules are the

01:11

less powerful these forces are And if gas molecules are

01:14

moving around quickly they'll whiz by each other instead of

01:17

spending time together in giving those forces of attraction timeto

01:20

work in order for our molecules to be well behaved

01:23

we want them to have fewer forces of attraction between

01:26

them which means we want them to be far apart

01:29

and moving fast This means that the question is actually

01:32

asking us under which conditions will gas molecules be far

01:36

apart and moving fast So what does that question mean

01:40

by conditions Well all of the answers given pressure and

01:43

atmospheres and a temperature And kelvin so we know our

01:46

conditions will have something to do with those measurements More

01:49

pressure means that the molecules will be forced closer together

01:52

So we want a low pressure to keep them apart

01:55

Temperature is the average kinetic energy of the gas molecules

01:59

So ah hi Temperature means they have more energy and

02:02

will be moving faster which is what we want Well

02:04

answer D has the lowest pressure and the highest temperature

02:07

Which means it's the answer We want yeah yes it's

02:11

Not a terrible job to solve chemistry problems but well 00:02:14.643 --> [endTime] we'll take that professional knocker position any day

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