Question

A sample of O2 in a 68.396 L metal cylinder at 0.4023 atm has its temperature changed from 136.12 K to 15.04 K while its volume is simultaneously changed by a piston to 20.066 L. What is the final pressure in atmospheres?


3.33 atm


0.98 atm


0.15 atm


1.23 atm

Answer 1

pv=NRT p1v1/P2v2=T1/T2 put all values and then you find that .15 atm pressure is p2