Which of the following statements is false?
A. The Lewis-Randall rule states that when the mixture is modeled as an ideal solution, the mixture fugacity of component i is equal to the pure component fugacity of component i, multiplied by the mole fraction of component i in the mixture.
B. The activity coefficient of component i in a mixture is the mixture fugacity of component i divided by the mixture fugacity of component i if treated as an ideal solution.
C. The mixture fugacity must carry units of pressure (Pa, kPa, MPa, …).
D. The mixture fugacity of component i will be the same value in all of the phases where it appears in phase equilibrium.
E. None of the above are false.
A. Incorrect. This is true. Equation 11.33 shows this symbolically.
B. Incorrect. This is true. Equation 11.41 can be manipulated to show this.
C. Incorrect. This is true. Fugacity is an “adjusted” pressure, so it must carry the same units. Fugacity coefficients, on the other hand, have no dimensions because they are fugacity divided by pressure.
D. Incorrect. This is true. The chemical equilibrium condition can be stated this way, or algebraically in Equation 11.51.
E. Correct. All are true statements.
You might also like to view...
Technician A says the ECM energizes the fuel pump for 2 seconds when the key is turned to the RUN position. Technician B says the ECM will de-energize the fuel pump after 2 seconds when the key is turned to the START position if NE signal is not present. Who is correct?
A.)Tech A only B.)Tech B only C.)Both Tech A and Tech B D.)Neither Tech A nor Tech B
This is a process of heating and cooling steel using specific, controlled conditions and techniques.
a. killed steel b. heat treating c. rimmed steel d. carburization
What does "curb height" mean?
What will be an ideal response?
Five thousand new smart camera systems are needed annually to expand the security surveillance of roads, buildings, airports, parks, etc. in a large metropolitan area. The system components can be obtained in one of three ways: (1) Make them in one of three plants partially owned by the government; (2) Buy them off the shelf from the one and only manufacturer; or (3) Contract to have them made to specifications by a vendor. The estimated annual cost for each alternative is dependent upon specifics of the plant, the producer, or the vendor. The information below details the alternative, a probability of occurrence, and the estimated annual cost. (a) Construct and solve a decision tree to determine the least-cost alternative to provide the components. (b) Once you have chosen the
alternative on the tree, use a spreadsheet to determine the change in probability that the Buy alternative requires to make it equally attractive with the chosen alternative. Assume that the probability change will be equally distributed to the other probability estimates. Write the new probability values.
 FIGURE 1.png)