# AP Physics 2: 1.2 Probability and Systems

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AP Physics 2: 1.2 Probability and Systems. What is the volume of the balloon when cooled with liquid nitrogen?

AP Physics 2 | Probability and Systems |

Language | English Language |

Science Practice 6 | Working with scientific explanations and theories |

### Transcript

pressure remains constant that the balloon occupies one leader of

volume at room temperature what's its volume when cooled by

the liquid nitrogen and hear the financial answer I'm leaving

This experiment calls for the ideal gas law thiss law

explains how an ideal gas will act We assume that

being ideal in all it'll keep its room clean and

always be polite No wait That's not right And i

feel guest is a hypothetical gas that will always act

predictably Formula for an ideal gas law is pv equals

and katie this thing in this glacier p is pressure

be is volume and is the number of molecules Hey

sabi is bosman's constant and he is the temperature in

kelvin because it's the coolest Okay now that we have

that jan di door brains let's take another look at

our experiment Remember we're dropping a bullet gets a liquid

nitrogen because that's our idea of fun on a friday

night judges the balloon is sealed so the amount of

particles and pressure remain the same And remember we're trying

to figure out how the change in temperature effects the

change in volume Let's look at the two equations from

different volumes Since we're solving for volume we'll just rearrange

the equations by dividing both sides By p we could

dividing rearrange the equations canceling out everything but the volumes

And the temps visa two equals t's up to over

t someone times visa of one lycan in the Numbers

We have 77 degrees kelvin over three hundred reason calvin

times one leader which means the volume is about equal

to a point two five leaders and that makes me

the correct answer Well so there we have it Now

we can go fun playing around with liquid nitrogen and

just remember to wear gloves No one wants to end 00:02:00.643 --> [endTime] up with a hand sickle Well