Experimentally, which of the following data will give plots that allow us to determine values of...
Experimentally, which of the following data will give plots that allow us to determine values of ΔH°?
HINT: The notation for plotting graphs is always y-axis value vs. x-axis value
Select one:
a. 1/T as a function of Kcross out
b. 1/T as a function of ln K cross out
c. K as a function of 1/Tcross out
d. ln K as function of 1/Tcross out
e. K as a function of T
Homework Answers
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Experimentally, which of the following data will give plots that
allow us to determine values of...
Use one of your experimentally determined values of k, the activation energy you determined, and the...
Use one of your experimentally determined values of k, the activation energy you determined, and the Arrhenius equation to calculate the value of the rate constant at 25 °C. Alternatively, you can simply extrapolate the straight line plot of ln(k) vs. 1/T in your notebook to 1/298 , read off the value of ln(k), and determine the value of k. Please put your answer in scientific notation. slope=-12070, Ea=100kJ/mol, k= 0.000717(45C), 0.00284(55C), 0.00492(65C), 0.0165(75C), 0.0396(85C)
A sample of an unknown elemental semiconductor had the following values of resistance at the give...
A sample of an unknown elemental semiconductor had the following
values of resistance at the given temperatures:
Calculate its band (energy) gap and, comparing this value with
published data, what is the likely semiconductor? Do you think your
calculated value is reasonable? Why/why not? (10 marks) Hint:
Remember the relationships between resistance, resistivity and
conductivity, then use the relevant conductivity equation for
plotting ln(1/R) vs 1000/T.
A sample of an unknown elemental semiconductor had the following values of resistance at...
Use one of your experimentally determined values of k, the activation energy you determined, and the Arrhenius equation...
Use one of your experimentally determined values of k, the activation energy you determined, and the Arrhenius equation to calculate the value of the rate constant at 25 °C. Alternatively, you can simply extrapolate the straight line plot of ln(k) vs. 1/T in your notebook to 1/298 , read off the value of ln(k), and determine the value of k. Please put your answer in scientific notation. slope=-12070, Ea=100kJ/mol, k= 0.000717(45C), 0.00284(55C), 0.00492(65C), 0.0165(75C), 0.0396(85C)
Use matlab a) Create a simulated data set b) Create a set of plots to determine...
Use matlab
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Unfortunately, not all graphs will immediately give us an answer. The following exercise illustra...
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Unfortunately, not all graphs will immediately give us an answer. The following exercise illustrates a possible trouble identifying a limit from the graph and then shows how a theorem from calculus can help us figure out the actual limit. Exercise 5 We wish to find the limit of the oscillating function as x approaches0 Plot the function f(x) x sin(1/x), over the interval [-n,n] using 100 points for...
The figure shows the transverse velocity u versus time t of the point on a string...
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y(x, t) =
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3) Determine the values below using the graphs of fand g shown. If a value is...
3) Determine the values below using the graphs of fand g shown. If a value is not defined, state "not defined." Assume the ends of fand g continue the shape you see beyond the graph. Ax) c) 2-5(g(0)-3) (Read carefully.) d) 9(3) a e) g-2) 6-2 9) R-3)+9(5) h) For what values of x does g(x)-2? i) For what values of x is fdecreasing? D For what values of x is g increasing? k) Give three values that g(x) can...
Data And Report Submission - Entropy Of Borax Dissolution
Data And Report Submission - Entropy Of Borax Dissolution(2pts) "Enthalpy and Entropy Changes of Dissolving Borax"Are you completing this experiment online?YesData CollectionRecord the concentration of HCl used in the experiment (M)0.500Table 1. Data Collection ~60°C trial~50°C trial~40°C trial~30°C trial~20°C trialActual temp (°C)60.350.939.629.518.2Vol. borate solution (mL)5.005.005.014.974.95Initial buret reading (mL)4.9020.9131.7137.8641.50Final buret reading (mL)20.9131.7137.8641.5043.44(14pts) Calculations and AnalysisUse the data collected in the table above to complete the calculations in the following table.Table view List viewTable 2. Calculations ~60°C trial~50°C trial~40°C trial~30°C trial~20°C trialVol. of HCl used (mL)Moles...
Fill in the data sheet and please show your work for the calculations Thermodynamics of Potassium...
Fill in the data sheet and please show your work for the
calculations
Thermodynamics of Potassium nitrate dissolving in water
KNO3(s) ↔
K+ (aq) +
NO3-(aq
Determine the thermodynamic variables, ΔG, ΔH, and ΔS, for the
dissolving of KNO3 in water. You will find these
variables by creating a Van’T Plot, which is a graph of
lnK(sp) vs 1/T.
A set amount of KNO3 is weighed and dissolved in 25mL
of water and heated until all the KNO3 is
dissolved....
Below is data that a researcher collected on the observed decay of a chemical in water...
Below is data that a researcher collected on the observed decay of a chemical in water as a function of time. The Researcher used an analytically technique to quantify the chemical that reports relative “peak area” or “response” values. As a result, the researcher analyzed a series of known “standards” of chemical “A” to construct a standard curve, from which the concentrations of “A” in the experimental samples could be calculated. It is known that the chemical decays by a...
A sample of an unknown elemental semiconductor had the following
values of resistance at the given temperatures:
Calculate its band (energy) gap and, comparing this value with
published data, what is the likely semiconductor? Do you think your
calculated value is reasonable? Why/why not? (10 marks) Hint:
Remember the relationships between resistance, resistivity and
conductivity, then use the relevant conductivity equation for
plotting ln(1/R) vs 1000/T.
A sample of an unknown elemental semiconductor had the following values of resistance at...
Use matlab
a) Create a simulated data set b) Create a set of plots to determine the best transformation to linearize the data c) Fit a first order polynomial (y mx + b) to the linearized data to find the constants m and b d) Reconstruct the original equation from m and b in the linear fitted polynomial e) Plot the fitted equation. Radioactive decay is modeled by the equation: rt where A the amount of mass as a function...
please expalin how to do problem 5 in exercise 5 in matlab
Unfortunately, not all graphs will immediately give us an answer. The following exercise illustrates a possible trouble identifying a limit from the graph and then shows how a theorem from calculus can help us figure out the actual limit. Exercise 5 We wish to find the limit of the oscillating function as x approaches0 Plot the function f(x) x sin(1/x), over the interval [-n,n] using 100 points for...
3) Determine the values below using the graphs of fand g shown. If a value is not defined, state "not defined." Assume the ends of fand g continue the shape you see beyond the graph. Ax) c) 2-5(g(0)-3) (Read carefully.) d) 9(3) a e) g-2) 6-2 9) R-3)+9(5) h) For what values of x does g(x)-2? i) For what values of x is fdecreasing? D For what values of x is g increasing? k) Give three values that g(x) can...
Fill in the data sheet and please show your work for the
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Thermodynamics of Potassium nitrate dissolving in water
KNO3(s) ↔
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Determine the thermodynamic variables, ΔG, ΔH, and ΔS, for the
dissolving of KNO3 in water. You will find these
variables by creating a Van’T Plot, which is a graph of
lnK(sp) vs 1/T.
A set amount of KNO3 is weighed and dissolved in 25mL
of water and heated until all the KNO3 is
dissolved....
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