Chemical Engineering Material Balance -
Three hundred gallons of a mixture containing 75.0 wt % ethanol and 25 wt % water (mixture specific gravity = 0.877) and a quantity of a 40.0 wt % ethanol - 60 wt % water mixture (specific gravity = 0.952) are blended to produce a mixture containing 60.0 wt % ethanol.
The specific gravity of a substance is the ratio of density of a substance compared to the density of water.
The symbol of weight percent is wt %.
(a) Estimate the specific gravity of the 60 % mixture by assuming that y = mx c where y is wt % ethanol, x is mixture specific gravity. Values for m and c are constants.
(b) Determine the required volume of the 40 % mixture.
- 1 Answers
- 11124 Views
- I also Faced
- E-Mail Answers
Answer Posted / kang chuen tat
(a) Let X = specific gravity of the 60 % mixture.
By interpolation for a straight line with constant m as gradient, then (75 - 40) / (0.877 - 0.952) = (60 - 40) / (X - 0.952). Then 35 / (-0.075) = -466.67 = 20 / (X - 0.952). X = -0.0429 0.952 = 0.9091.
(b) Let V = the required volume of the 40 % mixture.
Mass of ethanol in 75 % mixture Mass of ethanol in 40 % mixture = Mass of ethanol in 60 % mixture.
Then, 300 (0.877) (0.75) V (0.952) (0.4) = (V 300) (0.9091) (0.6).
Then 197.325 0.3808 V = 0.5455 V 163.638. V = 204.53 gallons.
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 ? | 2 Yes | 8 No |
Post New Answer View All Answers
PLEASE ANY ONE READ THIS MESSAGE ANSWER ME AT MY EMAIL ID surendrasaroj18@gmail.com sir i am prepairing for section engineer exam taken by railway my branch is chemical engineering i want previous paper of chemical engineering of section engineer exam taken by railway. please answer me as soon as possible thankyou
What are the factors involved in considering the choice of dry screw compressor?
Dear guys we adding hypo at climax plant and that water is inlet to DM plant so with hypo water that can affect my resins of cation and anion. if it is affect life of my anion and cation so what kind of steps should be take.
based on percentage problems
what r the question asked in interview of gate,is it related to course?
How can you prevent bridging in a dilute phase pneumatic conveying system?
Define "good" cooling tower water?
Explain the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers?
What are some common causes of gas pipeline vibration 20 carbon steel line?
The process conditions of the fuel gas are as follows: Temperature = 25 deg C Pressure = 4 bar g Calculate the line size for the fuel gas supply line to the superheater
Is it ever advantageous to use shells in series even though it may not be necessary?
Name some common causes of control valve noise?
hai....i am chandrika. if anybody having test questions for HAL,HPCL,ONGC,IOL...PLS SEND THE QUES WITH SOLVED ANSWERS TO ME TO MY MAIL ID chandrismiles@yahoo.co.uk
Explain the common failure mechanism for above ground atmospheric storage tanks?
What are some common methods for helium leak testing a vacuum system?
