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.
Answer / 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 |
Can anybody suggest the Methods/Procedures for estimation of oxygen, hydrogen, methane, carbon dioxide, CO, etc. in binary or complex gas mixtures?
what is flooding in a column.How do you know flooding has occured?
Calculate the line size for a cooling water line with a volumetric flowrate of 1200m3/h of water. Density of water = 1000kg/m3
What is the average salary for chemical engineers?
Question 79 - (a) The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. Let SG = specific gravity of petroleum liquid, and V = barrels of crude oil per metric ton. Given the formula for API gravity = 141.5 / SG - 131.5 and V = (API gravity + 131.5) / (141.5 x 0.159), find the relationship of SG as a function of V. (b) An oil barrel is about 159 litres. If a cylinder with diameter d = 50 cm and height h = 50 cm is used to contain the oil, find the volume V of the cylinder in the unit of oil barrel by using the formula V = 3.142 x d x h x d / 4. (c) First reference : 1 cubic metre = 6.2898 oil barrels. Second reference : 1 cubic metre = 6.37 oil barrels. What are the 2 factors that cause the difference in such reference data?
what is extractive distillaion
testing formula for oxygen by ammonium chloride,ammonium hydroxide and copper
why u opted for chemical engg?
Question 57 – There are 2 simultaneous equations : (A1) x + (B1) y = D1 and (A2) x + (B2) y = D2. (a) By using Excel program, find the values of x and y when A1 = 80, A2 = 150, B1 = 52, B2 = 100, D1 = 3.5 and D2 = 2.3. (b) Write the expression of Excel in the form of =MMULT(MINVERSE(W:X),Y:Z) in order to get the values of x and y. W, X, Y and Z may be A1, A2, B1, B2, D1 and D2.
what is the apt definitions for apparent power ,active power and reactive power?and explanation about different types of lamps?
THERMODYNAMIC - EXAMPLE 10.1 : The water is superheated steam at 440 degree Celsius and 17.32 megapascals. Estimate the enthalpy of the steam above. From the steam table for water at 440 degree Celsius, enthalpy of steam, h at 18 megapascals is 3103.7 kilojoules per kilogram and at 16 megapascal is 3062.8 kilojoules per kilogram. Assume that h = mP + c where P is pressure; m and c are constants at fixed temperature with small differences in P.
What is the Chemical Formula of Mineral Oil used in Transformer. It is Challenged for all Chemical Engineers.
6 Answers Ambuja, Oil and Gas Jobs,