A lot of trouble with this question, I think because it gives you the molarity of PCl5 but asks for atm at the end and I'm not really sure how to solve the question that way. I first found deltaG standard to be 2.75 kJ, then plugged that in to find that K was .516 but when it came time to set up the K=P/R equation from my ICE table, I got confused because of the atm/M difference.
