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Topic :: Solute
Chemical Engineering Energy Balance - Please match the term A - E as follow with the stated definition : A. Yield. B. Selectivity. C. Relative saturation. D. Molal saturation. E. Absolute saturation. i. Answer : ? (moles of desired product formed) / (moles that would have been formed if there were no side reactions and the limiting reactant has reacted completely). ii. Answer : ? (moles of desired product formed) / (moles of undesired product formed). iii. Answer : ? (relative humidity 40 % means partial pressure of water vapour equals 4 / 10 of the vapour pressure of water at the system temperature). iv. Answer : ? (moles of vapour) / (moles of vapour dry gas). v. Answer : ? (mass of vapour) / (mass of dry gas).
1 2886absolute path gives the location a file or directory in reference to a rile directory while relative path is a path given file starting from another file. explain?
NIBS,
1702ON adding more solid solute to a solution,does solution will freeze more rapidly ? Please tell me about it , I am very confused it should not more rapidly freeze a/c to me
1 2510How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.
1646Question 50 - An aqueous solution with 2.5 g of a protein dissolved in 600 cubic centimeters of a solution at 20 degree Celsius was placed in a container that has a water-permeable membrane. Water permeated through the membrane until the h - level of the solution was 0.9 cm above the pure water. (a) Calculate the absolute temperature of the solution, T in Kelvin, where T (Kelvin) = T (degree Celsius) + 273.15. (b) Calculate the osmotic pressure, P of the solution by using the formula P = hrg where h is level of the solution, r is density of water with 1000 kg per cubic meter, g = 9.81 N / kg as gravitational acceleration. (c) Calculate the concentration of the protein solution, C in kg / cubic meter. (d) Calculate the molecular weight of the protein, (MW) = CRT / P where R = 8.314 Pa cubic meter / (mol K) as ideal gas constant.
1 2549Consider there are objects in a webapp which are identified by QTP. Suppose you know only the logical name of a object(absolutely nothing else about it). Which approach will you take to find the "micClass" of the object(You can't use Object Spy, or can't add the object in repository)?
HCL,
2 3783Question 90 - In the calculation of the growth of bacteria, absorbance, A in spectrophotometry is used. According to Beer-Lambert Law, A = e x l x c where A is the absorbance of the solution (no unit), l is the distance of light travels through the solution (in cm), e is the molar absorptivity or the molar extinction coefficient [ in L / (mol.cm) ]. For a particular solute and fixed path length : As / Ao = Cs / Co where Ao is the observed signal for a known concentration Co, and As is the observed signal for a sample concentration Cs. (a) For a cell concentration of 560 cells / mL, a spectrophotometre gives an absorbance reading of 1.0. A mixture of concentration 3600000 cells / mL can be diluted in several operations, with each operation having a dilution of 1:20. How many dilutions should be made so that the concentration of this mixture can be calculated within a range of A = 0.0 to 1.0. (b) In another experiment, a sample tube of 1 cm in width is used. Let A = 0.06 and e = 0.0012 ml / (cell.cm). Find the cell concentration of the sample.
1 2194Question 93 - In thin layer chromatography (TLC), let retention factor Rf = (distance traveled by solute) / (distance traveled by solvent). Silica gel is used as stationary phase which is more polar than the hexane solvent as mobile phase. If the Rf values of 3 solutes A, B and C are 1.5, 0.75 and 1 respectively, compare the polarities of A, B and C with reasons.
1 2770Question 94 - The resolution of separation, Rs for chromatography is given by the formula Rs = (difference in retention time) / (average width at the base). In a chromatogram, 3 peaks a, b and c are found. Average widths W at the bases of the solutes are : Wa = 20 s, Wb = 40 s, Wc = 30 s. Resolutions of separation, Rs for solutes b and c in comparison to a are 2 and 4 respectively. The differences in retention times T for b and c in comparison to a are (Tb - Ta) and (Tc - Ta), Ta = Tc - Tb : (a) Form 2 equations involving Rs as a function of Wa, Wb, Wc, Ta, Tb and Tc. (b) Find the values of Ta, Tb and Tc.
1 2759CHEMICAL ENERGY BALANCE - EXAMPLE 11.1 : Please match the term A - E with the stated definition i - v. Terms : A. Yield. B. Selectivity. C. Relative saturation. D. Molal saturation. E. Absolute saturation. Definitions : i. (moles of desired product formed) / (moles that would have been formed if there were no side reactions and the limiting reactant has reacted completely); ii. (moles of desired product formed) / (moles of undesired product formed); iii. (relative humidity 40 % means partial pressure of water vapour equals 4 / 10 of the vapour pressure of water at the system temperature); iv. (moles of vapour) / (moles of vapour dry gas); v. (mass of vapour) / (mass of dry gas).
1 2137BIOPROCESS ENGINEERING - EXAMPLE 14.2 : An aqueous solution with 2.5 g of a protein dissolved in 600 cubic centimeters of a solution at 20 degree Celsius was placed in a container that has a water-permeable membrane. Water permeated through the membrane until the h - level of the solution was 0.9 cm above the pure water. (a) Calculate the absolute temperature of the solution, T in Kelvin, where T (Kelvin) = T (degree Celsius) + 273.15. (b) Calculate the osmotic pressure, P of the solution by using the formula P = hrg where h is level of the solution, r is density of water with 1000 kg per cubic meter, g = 9.81 N / kg as gravitational acceleration. (c) Calculate the concentration of the protein solution, C in kg / cubic meter. (d) Calculate the molecular weight of the protein, (MW) = CRT / P where R = 8.314 Pa cubic meter / (mol K) as ideal gas constant.
1 2520MICROBIOLOGICAL ENGINEERING - QUESTION 28.3 : In the calculation of the growth of bacteria, absorbance, A in spectrophotometry is used. According to Beer-Lambert Law, A = e x l x c where A is the absorbance of the solution (no unit), l is the distance of light travels through the solution (in cm), e is the molar absorptivity or the molar extinction coefficient [ in L / (mol.cm) ]. For a particular solute and fixed path length : As / Ao = Cs / Co where Ao is the observed signal for a known concentration Co, and As is the observed signal for a sample concentration Cs. (a) For a cell concentration of 560 cells / mL, a spectrophotometre gives an absorbance reading of 1.0. A mixture of concentration 3600000 cells / mL can be diluted in several operations, with each operation having a dilution of 1:20. How many dilutions should be made so that the concentration of this mixture can be calculated within a range of A = 0.0 to 1.0. (b) In another experiment, a sample tube of 1 cm in width is used. Let A = 0.06 and e = 0.0012 ml / (cell.cm). Find the cell concentration of the sample.
1 2340BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.3 : In thin layer chromatography (TLC), let retention factor Rf = (distance traveled by solute) / (distance traveled by solvent). Silica gel is used as stationary phase which is more polar than the hexane solvent as mobile phase. If the Rf values of 3 solutes A, B and C are 1.5, 0.75 and 1 respectively, compare the polarities of A, B and C with reasons.
1 2106
What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe?
Perform the following tasks using MS-EXCEL: FUEL ESTIMATES COMPUTATIONS: This project is to compute the fuel needed for two types of airplanes, and the cost of the fuel. You must do all computations using formula, and do a chart. Use Page Setup to make the left margin 0.5 and the right margin 0.5 also. Put your name in the Title line, after "Fuel Estimates". Note the following: ? Col. D - H: You must enter correct formulas under Columns D through H (Flying Fuel, Reserve Fuel, Holding Fuel, Total Fuel Needed and Estimated Fuel Cost)!! Read and compute carefully! ? Cells C12, C13, C14, H13 or H14: When you use these cells in a formula, you must make them absolute cell references (F4 key after your type the cell reference, or enter the $ sign manually) ? Graph/Chart: Select cells A3:B8 (Plane and Flight). Hold down the "Control" key and select D3:D8. Hold down the "Control" key and select G3:G8. Create a chart (Insert- Chart, Finish) and position it in a pleasing way under the data for the flight. Print it on one sheet, in landscape mode. ? Print again, but with Formulae: There are two ways to show formulas: 1) Enter Control+` (the key with the ~ at the top left) or 2) Tools-Options, and under "Window Options" put a check mark beside "Formulas", then close the window.
23. Storage space in java is of the form Stack Queue Heap List 24. What is java code embedded in a web page known as Applets Servlets scriptlets snippets 25. Which of the following attributes are compulsory with an
Am not able to move the controls on the form freely in asp.net 3.5 even though I selected the position as relative or absolute for those controls. What should I do to overcome this?
I have given the protocol for the cyclodextrin glygosyl transferase assay: One ml of appropriately diluted enzyme sample was incubated at 60 °C for 15 min with 5 ml of 1% (w/v) gelatinized soluble starch in 50 mM, 7.0-pH Tris–HCl buffer. Reaction was terminated by boiling the reaction mixture for 3 min and reaction volume was made to 10 ml with distilled water. Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol). Absorbance was measured at 550 nm. The percent decrease of sample was calculated with respect to control containing 5 ml of buffer, 5 ml of sodium carbonate and 0.5 ml of phenolphthalein. where Acontrol = absorbance of control and Atest = absorbance of sample. The amount of β-cyclodextrin (β-CD) produced was estimated from the standard graph of 0–500 μg/ml β-CD concentration against % decrease in absorbance. One unit of CGTase was defined as the amount of enzyme required to produce 1 μm of β-CD/min. Please can you suggest me the formula for the defination given in the last line
how can i access a direct (absolute, not the offset) memory
address?
here is what i tried:
wrote a program that ask's for an address from the user,
creates a FAR pointer to that adress and shows it. then the
user can increment/decrement the value in that address by
pressing p(inc+) and m(dec-).
NOW, i compiled that program and opened it twice (in 2
different windows) and gave twice the same address to it.
now look what happen - if i change the value in
one "window" of the program, it DOES NOT change in the
other! even if they point to the same address in the memory!
here is the code snippet:
//------------------------------------------------------
#include why we cant measure absolute entropy directly,but the
change we can? Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE
SPAN FOR ABSOLUTE AND FOR NORMAL?
Q2]HOW TO CALIBRATE CAPILLARY TYPE LT?
Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS
INDUSTRIES?
Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER?
Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT?
Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS
APPLIED FOR CALIBRATION AND FOR ALL?
PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in Can we use a absolute encoder to show rpm of a motor ? what
about the condition when power is off ? what is difference if
a incremental one is used ?abanirout@gmail.com Which environment variables are absolutely critical in order
to run the OUI? Define unit atmospheric pressure? Difference between gauge
pressure, absolute pressure? I need help with the following lab. Can anyone explain it to
me on how to approach this problem. Coding would be great
too !!!
No busy waiting allowed. Remember that Java monitors are
'signal and continue'. The input data is called the database
(DB). In this problem, it consists of a single variable
initialized in the main thread, to contain the current time
of day in HH:MM:SS:mmm format (mmm is milliseconds)
truncated to 3 digits. Threads follow these rules:
1. Readers may all attempt to read at the same time, but NOT
if a writer is writing (i.e.; the writer is in the monitor.
2. Writing is exclusive (only 1 writer at a time, no readers
while writing).
3. Options: (to be specified by instructor)
a. Readers have absolute priority over writers.
b. Writers have absolute priority over readers
c. When a reader arrives and a writer is waiting, the reader
is suspended behind the writer instead of being admitted
immediately. Thus, a writer waits for readers that were
running when it arrived, but does not to wait for new readers.
You may program this in C++ or Java. There are 4 controlling
input values:
1. r – number of readers
2. w – number of writers
3. R – delay for a reader to restart
4. W – delay for a writer to restart
Create the following program consisting of 1 main process
(your main program) with n threads:
1. The main thread:
a. Creates the 'n' threads needed. Of these, r of them are
readers and w of them are writers. Starts all readers and
writers.
b. Waits for all 'n' threads to complete. You may use any
method to detect when they are all complete.
c. Prints out the resulting outputs from the threads.
2. Threads:
a. When a thread starts to run, it immediately tries to
enter the monitor.
b. A reader thread reads the DB, outputs the exact message
below, then exits:
>>> DB value read =: HH:MM:SS:mmm by reader number: rr
where the underlined text is replaced with actual data.
c. A writer thread updates the DB with a new value (from the
system time), outputs the exact message below, then exits:
*** DB value set to: HH:MM:SS:mmm by writer number: ww
where the underlined text is replaced with actual data.
d. Each thread accesses the data a total of 10 times,
exiting, then re-entering the monitor after each access.
Hints:
1. File access *might* not be thread-safe, so you should be
prepared to handle this. Read the documentation for the
language you are using.
2. Suggested values for delays are:
a. If looping, R >=1,000,000 and W>=100,000
b. If using “sleep”, then R=100 ms, W=50 ms.
Additional:
• Thread output is to ONE file used by ALL threads (so you
need to synchronize access to it).
• Readers must provide sufficient delay that results are
useful (delay by R before re-trying). R is another input value.
• Writers must also delay. Delay by W, updating the DB each
time. W is an input.
• Test your program with AT LEAST TWO different sets of
values for r and w (#s of readers and writers) plus this
set: r = 4, w=2.
Basic operation of a thread: attempt to enter the monitor.
If unsuccessful, you get put on a queue. When you get in,
read or write the data (depending on type of thread), exit
the monitor, wait the required delay amount, then try again.
Repeat 10 times.
what is the difference b/w absolute encoder and incremental
encoder? consider a program module that inputs two (2) values, n and
max, and computes the sum of the first n integers as long as
this sum is less than max; otherwise an error should be
reported. if n is negative, then it takes the absolute value.
a) list the equivalence partitions, and
b) list the boundary values. What's the difference between absolute vibration & relevant
vibration regarding Boiler Feedwater Pump ?
