For a diffusion couple with D=10?14 m2/s, select the plot of the concentration profile of metal...
For a diffusion couple with D=10?14 m2/s, select the plot of the concentration profile of metal A over a range of 20 ?m on either side of the original interface (x=0) after a time of 1 hour. [Note that erf(?z)=?erf(z).]
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For a diffusion couple with D=10?14 m2/s, select the
plot of the concentration profile of metal...
A diffusion couple composed of two silver– gold alloys is formed; these alloys have compositions of...
A diffusion couple composed of
two silver– gold alloys is formed; these alloys have compositions
of 98 wt% Ag–2 wt% Au and 95 wt% Ag– 5 wt% Au. Determine the time
this diffusion couple must be heated at 750°C (1023 K) in order for
the composition to be 2.5 wt% Au at the 50 μm position into the 2
wt% Au side of the diffusion couple. Preexponential and activation
energy values for Au diffusion in Ag are 8.5 × 10−5...
Question 7 --/1 View Policies Current Attempt in Progress A diffusion couple of two metals, A...
Question 7 --/1 View Policies Current Attempt in Progress A diffusion couple of two metals, A and B, was fashioned as shown: Diffusion of A atoms A-B alloy A Diffusion ofB atoms After a 32-hour heat treatment at 1010°C (and subsequent cooling to room temperature), the concentration of A is 3.9 wt% at the 12.6-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 900°C for 32 hours, at what position...
UTVER VIS Concentration of Nitrogen (wt%): = 0.21 Position in mm= 7.2 Diffusion Coefficient for Nitrogen...
UTVER VIS Concentration of Nitrogen (wt%): = 0.21 Position in mm= 7.2 Diffusion Coefficient for Nitrogen in Iron at 700°C -8.90E-10 Nitrogen in Iron Heat Treatment Time (hours): = 8 Carburizing Time (hrs): = 7 Steel Alloy Case Depth (mm): 4.8 Steel Alloy New Case Depth (mm) - 9.9 Activation Energy kJ/mol: = 103 Temperature for Problem 3 (Celsius) -809 . Data for Problem 4 Temperature in C: -595 Diffusivity (m2/s) = 5.62E-14 Temperature in C: -702 Diffusivity (m /s)...
Part A only please. Problem 2 a) If we simplistically assume that the chemical spill's shape...
Part A only please.
Problem 2 a) If we simplistically assume that the chemical spill's shape is a cylinder, write a function that calculates the volume of the spill (Hint: assume that the cumulative maxima of the coordinates define the edges of the spill for each time step). b) Assume that 25 kg spilled over 30 minutes at a constant rate, calculate the material concentration over 46 hours for a water depth of 18 m, a mixing coefficient of 1.15...
At a metal plating plant has a floor area of 2 x 104 m2 and a ceiling Some of the metals that wil...
explain step by step
at a metal plating plant has a floor area of 2 x 104 m2 and a ceiling Some of the metals that will be used in the plating operations are known to as an impurity. The health and safety engineer at the plant is currently 5. The processing room height of 6 m. contain arse concerned that as metals are heated during the plating process arsenic vapors will be released into the work area. A preliminary...
% We can couple the design of gain on the root locus with a % step-response...
% We can couple the design of gain on the root locus with a
% step-response simulation for the gain selected. We introduce
the command
% rlocus(G,K), which allows us to specify the range of gain, K,
for plotting the root
% locus. This command will help us smooth the usual root locus
plot by equivalently
% specifying more points via the argument, K. Notice that the
first root locus
% plotted without the argument K is not smooth. We...
Can't figure out the concentration of the complex of solns. 10, 11, 12, 13, & 14. Modern...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hy...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hypothetical reaction aAlE) products where a is a numeric variable and A is a chemical variable. The reaction therefore has the form of a decomposition reaction, in which a single substance forms one or more new substances. For consistency, all concentrations start out at 1.000...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you obser after completing the halide test, and what would that observation lead you to conclude? Organic Laboratory Technique Primer Sodium Fusions and lon Testing Background: The elements that commonly occur in organic compounds along with carbon, hydrogen, and oxygen, are: nitrogen sulfur, and the halogens. The detection of these latter three elements depends on converting them into water soluble lons (CNS , and X...
A diffusion couple composed of
two silver– gold alloys is formed; these alloys have compositions
of 98 wt% Ag–2 wt% Au and 95 wt% Ag– 5 wt% Au. Determine the time
this diffusion couple must be heated at 750°C (1023 K) in order for
the composition to be 2.5 wt% Au at the 50 μm position into the 2
wt% Au side of the diffusion couple. Preexponential and activation
energy values for Au diffusion in Ag are 8.5 × 10−5...
Question 7 --/1 View Policies Current Attempt in Progress A diffusion couple of two metals, A and B, was fashioned as shown: Diffusion of A atoms A-B alloy A Diffusion ofB atoms After a 32-hour heat treatment at 1010°C (and subsequent cooling to room temperature), the concentration of A is 3.9 wt% at the 12.6-mm position within metal B. If another heat treatment is conducted on an identical diffusion couple, this time at 900°C for 32 hours, at what position...
UTVER VIS Concentration of Nitrogen (wt%): = 0.21 Position in mm= 7.2 Diffusion Coefficient for Nitrogen in Iron at 700°C -8.90E-10 Nitrogen in Iron Heat Treatment Time (hours): = 8 Carburizing Time (hrs): = 7 Steel Alloy Case Depth (mm): 4.8 Steel Alloy New Case Depth (mm) - 9.9 Activation Energy kJ/mol: = 103 Temperature for Problem 3 (Celsius) -809 . Data for Problem 4 Temperature in C: -595 Diffusivity (m2/s) = 5.62E-14 Temperature in C: -702 Diffusivity (m /s)...
Part A only please.
Problem 2 a) If we simplistically assume that the chemical spill's shape is a cylinder, write a function that calculates the volume of the spill (Hint: assume that the cumulative maxima of the coordinates define the edges of the spill for each time step). b) Assume that 25 kg spilled over 30 minutes at a constant rate, calculate the material concentration over 46 hours for a water depth of 18 m, a mixing coefficient of 1.15...
explain step by step
at a metal plating plant has a floor area of 2 x 104 m2 and a ceiling Some of the metals that will be used in the plating operations are known to as an impurity. The health and safety engineer at the plant is currently 5. The processing room height of 6 m. contain arse concerned that as metals are heated during the plating process arsenic vapors will be released into the work area. A preliminary...
% We can couple the design of gain on the root locus with a
% step-response simulation for the gain selected. We introduce
the command
% rlocus(G,K), which allows us to specify the range of gain, K,
for plotting the root
% locus. This command will help us smooth the usual root locus
plot by equivalently
% specifying more points via the argument, K. Notice that the
first root locus
% plotted without the argument K is not smooth. We...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hypothetical reaction aAlE) products where a is a numeric variable and A is a chemical variable. The reaction therefore has the form of a decomposition reaction, in which a single substance forms one or more new substances. For consistency, all concentrations start out at 1.000...
d. Suppose you mistakenly acidify the filtrate with HCl instead of with HNO3. What would you obser after completing the halide test, and what would that observation lead you to conclude? Organic Laboratory Technique Primer Sodium Fusions and lon Testing Background: The elements that commonly occur in organic compounds along with carbon, hydrogen, and oxygen, are: nitrogen sulfur, and the halogens. The detection of these latter three elements depends on converting them into water soluble lons (CNS , and X...
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