Asked by Angel
I'm confused on this problem
A gaseous mixture inside a rigid steel vessel contains 75% CO2 and 25% H2O by volume at 175 degrees C and 225 kPa. The mixture is then cooled to 0 degrees C, thereby condensing the water vapor. What is the pressure of the CO2 at 0 degrees C? (assume that there is no water vapor present after condensation)
Please help me
A gaseous mixture inside a rigid steel vessel contains 75% CO2 and 25% H2O by volume at 175 degrees C and 225 kPa. The mixture is then cooled to 0 degrees C, thereby condensing the water vapor. What is the pressure of the CO2 at 0 degrees C? (assume that there is no water vapor present after condensation)
Please help me
Answers
Answered by
DrBob222
X<sub>CO2</sub> = 0.75
X<sub>H2O</sub> = 0.25
P<sub>CO2</sub> = X<sub>CO2</sub>*P<sub>total</sub>
P<sub>H2O</sub> = X<sub>H2O</sub>*P<sub>total</sub>
After the water condenses, the only gas left in the container is CO2 and it has changed T from 175 C to 0 C. Use
(P1/T1) = (P2/T2) to calculate the new pressure at the new T.
Post your work if you get stuck.
X<sub>H2O</sub> = 0.25
P<sub>CO2</sub> = X<sub>CO2</sub>*P<sub>total</sub>
P<sub>H2O</sub> = X<sub>H2O</sub>*P<sub>total</sub>
After the water condenses, the only gas left in the container is CO2 and it has changed T from 175 C to 0 C. Use
(P1/T1) = (P2/T2) to calculate the new pressure at the new T.
Post your work if you get stuck.
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