October 22, 2016

Homework Help: physics

Posted by Will on Sunday, April 27, 2008 at 11:53am.

An ideal gas at 18.5C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3.
(a) How many moles of gas are present?

(b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0C, what will be the pressure of the gas?

I used the formula pv = nRT
(1.54*10^5)(2.10m^3 = n(8.31)(18.5)
I did the the algebra and got 2103 moles, but that doesn't seem to be the answer. What am I doing wrong?

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