A pressure cooker with a volume of 6 L is filled with 27 grams of water and heated to 390.2 K. What is the pressure (atm) in the cooker?

Answer 1

Use P=nRT/V

n=27 g /18 g mole^-1

V and T are in the question. You need to find the correct value for R

Answer 2

Laura, you should check your previous posts. I answered this yesterday
http://www.jiskha.com/display.cgi?id=1323138582

Answer 3

Thank you DrBob, I missed that.

Dr Russ