Analysis setup

Note that there are no curly brackets around the parameter. Click the OK button to accept the value and return to the schematic. Logically, the Transient Analysis executes inside the Parametric Sweep. That is, for each value of the parameter, the Transient Analysis is run. Thus, for this setup, ten Transient Analyses will be run. Since we chose a small Maximum time step in the Transient Analysis setup, this simulation will take a long time to run. To speed up the simulation, you may want to increase the value of the Maximum time step. 

The Transient Analysis setup is the same as in the example without the start-up clear circuit ... 

Figure 4.16 a Schematic of a temperature-programmed analysis setup b TPR profile of CuO, CeOj, and a copper-doped ceria sample, Ceo.9Cuo.1O2, showing the effect of Cu doping on the reduction temperature. 

Note that the units in a unit analysis setup cancel just like variables in an algebraic equation. Therefore, when we want to convert tsp to mL, we choose the ratio that has tsp on the bottom to cancel the tsp unit in our original value and leave us with the desired unit of mL. If you have used correct conversion factors, and if your units cancel to yield the desired unit or units, you can be confident that you will arrive at the correct answer. 

We continue constructing the unit analysis setup by writing the skeleton ofa conversion factor the parentheses, the line dividing the numerator and the denominator, and the unit that we know we want to cancel. This step helps to organize our thoughts by showing us that our first conversion factor must have the nm unit on the bottom to cancel the nm unit associated with 365 nm. 

The average human body contains 5.2 L of blood. What is this volume in quarts The unit analysis setup for this conversion is below. Identify whether each value in the setup is exact or not. Determine the number of significant figures in each inexact value, calculate the answer, and report it to the correct number of significant figures. 

The unit analysis setup for this problem begins... 

When the answer you want is a ratio of two units, start your unit analysis setup with a ratio of two units. Put the correct type of unit in the correct position in the ratio. For this problem, we put the heat unit on the top and the mass unit on the bottom. 

Note that the units in a unit analysis setup cancel just like in an... 

If you have used correct conversion factors in a unit analysis setup, and if your... 

The general form of the unit analysis setup follows. 

Because the answer we want, molarity, is a ratio of two units (moles of solute—in this case, Na3P04—per liter of solution), we start our unit analysis setup with a ratio of two units. Because we want amount of Na3P04 on the top when we are done, we start with 8.20 g Na3P04 on the top. Because we want volume of solution on the bottom when we are done, we start with 100.0 mL of solution on the bottom. To convert mass of Na3P04 to moles of Na3P04, we use the molar mass of Na3P04. We finish our conversion with a conversion factor that converts milliliters to liters. 

The unit analysis setup is built around a mole to mole conversion factor... 

An alternative technique allows us to work Example 13.6 and problems like it using a single unit analysis setup. This technique, illustrated in Example 13.7, uses the universal gas constant, R, as a conversion factor. 

Additionally, as already mentioned earlier in this chapter, coupling a miniaturized device to MS is a sort of paradox if one compares the difference in sizes of the two parts of the analysis setup while the microsystem has a size in the millimeter range and is portable, the mass spectrometer can be up to several... 

Figure 17.6. Schematic of the entire differential thermal analysis setup. S, R, and M represent the sample, reference, and furnace-monitoring thermocouples, respectively. Adapted from W. W. Wendlandt, Thermal Methods of Analysis, New York John Wiley, 1964, by permission of the publisher.

FIGURE 48.1 Typical microdialysis sampling and analysis setup. 

Write the dimensional analysis setup for the first step only, the conversion of 672 hours to days, hours days. Do not calculate the answer, just write the setup. 

Which among the following might he Given quantities and, therefore, starting points for a dimensional analysis setup, and which are Per expressions that are used as conversion factors (a) 10 days (b) 2000 pounds = 1 ton (c) 2.54 centimeters per inch. 

Write a dimensional analysis setup for the problem. Calculate the answer and write it down just as it appears in your calculator. 

You may solve percent-yield problems such as this as two separate problems or as a single extended dimensional-analysis setup. Either way, note that percent yield refers to the product, not to a reactant. Yield always refers to a product. Accordingly, your percent-yield conversion should always be between actual and theoretical product quantities, not reactant quantities. Sometimes the conversion is at the beginning of the setup, as in Example 10.8, and sometimes it is at the end. 

The starting steps will help you Plan your strategy for solving this problem. Our Plan will be for a single dimensional-analysis setup from the given quantity to the wanted quantity. 

The direct proportionalities between the moles of the reactants and products in a chemical change and the quantity of energy absorbed or released allow these relationships to be used as Per expressions in dimensional-analysis setups. 

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