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Question 8.9

Posted: Mon Jan 23, 2017 5:19 pm
by Sanjay_Kumar_2J
Does anyone know how to do question 8.9 in the textbook? I've tried everything when it comes to changing units but nothing has yielded the correct answer. I'm using the delta U equals delta H minus P times delta V equation. Please let me know if im doing something wrong. Thanks!

Re: Question 8.9

Posted: Mon Jan 23, 2017 6:46 pm
by Jeannie_Kim_1I
First you solve for work (w=-Pextdelta V) to get -1.48 L atm, which you convert to -0.150 kJ. Then you use delta U=q+w. In this case, it would be 5.50 kJ (which is given to us in this problem) + (-0.150 kJ) = 5.35 kJ. Hope this helps!