February 25, 2017

Homework Help: Chemistry

Posted by Sean on Saturday, February 2, 2013 at 12:28pm.

A gas occupies a volume of 502 cm3 at 20.0 C. What will be its volume at 106 C?

I understand that it follows Charles' Law where the correct equation is V1/T1=V2/T2. My teacher expects all units of volume to be converted to Liters and all temperature to Kelvins. Using Celsius provides the answer of 2.22 L while Kelvins provides 0.649 l. Using Celsius gives a much more reasonable answer since volume increases proportionately to temperature. Are her instructions using Kelvins justified? I have converted pressure to atmospheres and volume to Liters and receive reasonable answers or answeres identical when not converting.

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