CHEMICAL ENERGY BALANCE - EXAMPLE 11.5 : According to Margules Equation, P = x(1

CHEMICAL ENERGY BALANCE - EXAMPLE 11.5 : According to Margules Equation, P = x(1) p(1) g(1) + x(2) p(2) g(2) for a two-component mixture where P is bubble pressure, x is mole fraction, p is saturation pressure, g is constant given by ln g(1) = x(2) A x(2). Find the value of A as a constant when P = 1.08 bar, p(1) = 0.82 bar, p(2) = 1.93 bar in a 50 : 50 mole fraction mixture. Estimate the pressure required to completely liquefy the 30 : 70 mixture using the same equation, by proving P = 1.39 bar. Take note that ln g(2) = x(1) A x(1), ln g(1) = x(2) A x(2).

Question Posted / kangchuentat

1 Answers
2304 Views
I also Faced
E-Mail Answers

CHEMICAL ENERGY BALANCE - EXAMPLE 11.5 : According to Margules Equation, P = x(1) p(1) g(1) + x(2) p..

Answer / kangchuentat

CHEMICAL ENERGY BALANCE - ANSWER 11.5 : Let x(1) = x(2) = 0.5 for 50 : 50 mole fraction mixture, then P = x(1) p(1) g(1) + x(2) p(2) g(2) or 1.08 = 0.5 (0.82) exp [ (0.5) A (0.5) ] + 0.5 (1.93) exp [ (0.5) A (0.5) ]. Then exp [ (0.5) A (0.5) ] = 1.08 / [ 0.5 (0.82 + 1.93) ] = 0.785, A = - 0.97. P for 30 : 70 mixture is P = x(1) p(1) g(1) + x(2) p(2) g(2) = (0.3) (0.82) exp [ (-0.97) (0.7) (0.7) ] + (0.7) (1.93) exp [ (-0.97) (0.3) (0.3) ] = 1.39 bar (proven) where g(1) = exp [ A x(2) x(2) ], g(2) = exp [ A x(1) x(1) ]. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Chemical Engineering Interview Questions

Explain what is a quick way to calculate frictional pressure drops in carbon steel pipe?

0 Answers

What is the import procurement cycle? What are the customization steps in sap?

0 Answers

Question 37 - Calculate the bubble temperature T at P = 85-kPa for a binary liquid with x(1) = 0.4. The liquid solution is ideal. The saturation pressures are Psat(1) = exp [ 14.3 - 2945 / (T + 224) ], Psat(2) = exp [ 14.2 - 2943 / (T + 209) ] where T is in degree Celsius. Please take note that x(1) + x(2) = 1. Please take note that y(1) + y(2) = 1, y(1) = [ x(1) * Psat(1) ] / P, y(2) = [ x(2) * Psat(2) ] / P, * is multiplication. P is in kPa.

1 Answers

Question 10 - In the US (United States), one barrel is equal to 42 US gallons and equivalent to 0.15898 cubic metres. One British barrel is equal to 36 Imperial gallons and equivalent to 0.163659 cubic metres. If an oil refinery in England sells 42 Imperial gallons of crude oil to a company in US, how much US gallons of crude oils has been sold?

1 Answers

What is the purpose of capacitor? What does capacitor load means? How does it connect?

0 Answers

my qualification is b.tech- industrial biotech. i was read about many chemical engineering subject as a allied like unit operation, chemical thermodynamics, chemical reaction engineering , mass transfer and separation, downstream processing and principle of chemical engineering. and i have 2 yrs working exprience on in the field of instrumentation and control... and my query is "can i able work as process technologist" and which subject i want conc. more?........

0 Answers

how to design a heat exchanger?

3 Answers TATA,

any meter avilable for measureing the Transformer Losses. ( like Voltmeter for voltage & ammiter for currenr )if yes plz give the make & supplier address, Email, Phone number.

0 Answers Piramal Healthcare,

What are some factors to consider when trying choosing between a dry screw compressor and an oil-flooded screw compressor?

0 Answers

I HAVE DOMAIN KNOWLEDGE IN PROCESS MANUFACTURINGAND I GOT AN APPARTUNITY AS A BUSINESS ANALYST AND I DNT HAVE ANY KNOWLEDGE ON ORACLE APPS/GIVE ME ANY VALUBLE SUGGESTION?

0 Answers Satyam,

Explain how can I evaluate the thermal relief requirements for double block-in of 98% sulfuric acid?

0 Answers

We have some pieces of metals that have been 'powder coated', how does that work?

0 Answers

For more Chemical Engineering Interview Questions Click Here