ALEKS - Using the Ideal Equation of State (2 of 2 - Harder Version)

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  1. Tony St John
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In my ALEKS problem, I did it this way and it was incorrect for some reason their key asked to use R=8.3145 J*mol^-1*K^-1

mikaylablevens
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WAIT!! how do you get to the last part ?? WHICH I PLUG THE SAME NUMBERS BUT IS NOT GIVING ME 613.3 K. can someone explain the last part Pleasee, Thank you

zurymarquez
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you didn’t explain how once you got all the correct conversions, how you got the temperature? did you do PV/nR?

solanamaryella
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So the conversions are right, most of this video is correct but some parts are wrong. R= 8.31446 when working with MPa or Pa and when the volume is in m to the third power. R=0.0820574 when the pressure is in atm and the volume is in liters. And how he converted 613.3 kelvin to Celsius is by subtracting 613.3k-273=340c. You always subtract 273 from kelvin when trying to find Celsius and you always add 273 when you are trying to find kelvin from Celsius. Also to find temperature you would use the equation T=PV/nR

jamiahwalker
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every time i plug in the v of cylinder ( of your equation ), i get a different answer

abby-bohy
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how did you get 72 to covert for volume?

dianamayo