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October 30, 2014

Homework Help: chem

Posted by jack on Saturday, January 22, 2011 at 12:44am.

At 20 degrees celsius the vapor pressure of dry ice is 56.5atm. If 10 g of dry ice (solid CO2) is placed in an evacuated 0.25 L chamber at a constant temperature of 20 degrees celsius, will all of the solid
sublime?

Is the answer no? I don't know if this is right, but I used the ideal gas law to see what the pressure would be in the chamber and got 21 atm. I compared that to the 56.5 atm, but I'm not sure what the answer is because it's lower.

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