Question: You are cooking in a tent at 17,000ft with outside air temp at -15F. The concentration of CO in the tent is 40ppm. Calculate the equivalent CO concentration in mg/m^3. First, I converted 17000ft to atm and got 501.5atm, which seems very wrong. Next, I converted -15F to 247.039K. I applied the Ideal Gas Law, PV=nRT I tried to solve for V. p=501.5 atm n(molecular weight CO)=28 R (should be a constant)=.082056 T=247.039 I come up with a ridiculous answer. It seems simple, but I can't figure out where I'm going wrong.