A 100-L rigid tank contains an ideal gas mixture of 5 g of O₂ and 5 g of CO₂ at a specified pressure and temperature. If O₂ were separated from the mixture and stored at mixture temperature and pressure, its volume would be A)35 L B)39 L C)50 L D)58 L E)100 L

Question

Quizplus · Accepted Answer

Solved by EES Software. Solutions can be verified by copying-and-pasting the following lines on a blank EES screen. 
V_mix=100 "L"
m1=5 "g"
m2=5 "g"
MM1=32 "kg/kmol"
MM2=44 "kg/kmol"
N1=m1/MM1
N2=m2/MM2
N_mix=N1+N2
y1=N1/N_mix
V1=y1*V_mix "L"
"Some Wrong Solutions with Common Mistakes:"
W1_V1=V_mix*m1/(m1+m2) "Using mass fractions"
W2_V1= V_mix "Assuming the volume to be the mixture volume"

A 100-L Rigid Tank Contains an Ideal Gas Mixture of 5