# Answer to Question #37079 in Physical Chemistry for Roberth95

Question #37079

35 L of oxygen at 85 C and 92,000 N m-2 is added to a 40 L stainless steel cylinder

containing carbon dioxide at 40 C and 70,000 N m-2. Calculate the final pressure in

the cylinder if after the addition the final temperature is 55 C.

containing carbon dioxide at 40 C and 70,000 N m-2. Calculate the final pressure in

the cylinder if after the addition the final temperature is 55 C.

Expert's answer

There is no chemical reactions in system, so we can calculate its pressure from physical laws.

Calculate the pressures of gases at the final conditions:

Oxygen:

P1V1/T1 = P2V2/T2

P2(O2) = P1V1T2/V2T1 = 92,000*35*328/(40*358) = 73,750 N/m^2

Carbon dioxide:

P1/T1 = P2/T2

P2(CO2) = P1T2/T1 = 73,350 N/m^2

The total pressure in systems is the sum of partial pressures of components:

P = P2(O2) + P2(CO2) = 147,200 N/m^2 = 147,000 N/m^2

Calculate the pressures of gases at the final conditions:

Oxygen:

P1V1/T1 = P2V2/T2

P2(O2) = P1V1T2/V2T1 = 92,000*35*328/(40*358) = 73,750 N/m^2

Carbon dioxide:

P1/T1 = P2/T2

P2(CO2) = P1T2/T1 = 73,350 N/m^2

The total pressure in systems is the sum of partial pressures of components:

P = P2(O2) + P2(CO2) = 147,200 N/m^2 = 147,000 N/m^2

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

## Leave a comment