ShmoopTube

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Thank you We sneak and here's your shmoop du jour

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brought to you by liquid nitrogen which is great for

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all sorts of physics thing Quit Well not so great

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My swimming pool here's Your question assumed that the helium

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in the balloon behaves is an ideal gas and the

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pressure remains constant that the balloon occupies one leader of

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

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

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This experiment calls for the ideal gas law thiss law

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explains how an ideal gas will act We assume that

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

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

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feel guest is a hypothetical gas that will always act

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predictably Formula for an ideal gas law is pv equals

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and katie this thing in this glacier p is pressure

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be is volume and is the number of molecules Hey

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

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

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

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

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

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night judges the balloon is sealed so the amount of

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

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to figure out how the change in temperature effects the

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

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

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the equations by dividing both sides By p we could

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dividing rearrange the equations canceling out everything but the volumes

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

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t someone times visa of one lycan in the Numbers

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We have 77 degrees kelvin over three hundred reason calvin

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times one leader which means the volume is about equal

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to a point two five leaders and that makes me

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the correct answer Well so there we have it Now

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we can go fun playing around with liquid nitrogen and

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

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