Tuesday, October 2, 2012

Lesson 11

Today we covered different laws and gas. During the demonstration, the gas inside the flask cools the pressure of the gas inside the flask decreases. Gays-Lussac's Law: the pressure of a given amount of gas is directly proportional to temperature if the gas volume and amount of gas do not change, and if the temperature is expressed in kelvin. Also something important to know is that in a flexible container, changing the temperature or pressure causes the volume to change. Rigid container increases the temperature causes the pressure to increase. Gas can enter or escape the container. That covers the basics! Homework below might help :) if anyone gets number 3... I don't! So some help would be appreciated :)

Homework:


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4 comments:

  1. AnonymousOctober 3, 2012 at 9:21 AM

    For number three you use Boyle's law so just get your constant by the pressure and volume they give you (18x40) to get 720. Because you're trying to find volume, set up your equation like 720 = 1 atm x V, so the volume is 720/1 atm, equaling 720 mL. (:

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  2. AnonymousOctober 3, 2012 at 8:56 PM

    Great job!

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  3. AnonymousOctober 7, 2012 at 8:08 PM

    Awesome, as always

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