Kinetics Exam 4 Version#1 Questions And Verified Answers Graded A+.

Which of the following are the best sources of data that can be used for reactor design? - correct answer Pilot-plant studies, bench scale experiments, operating data from commercial-scale reactors Which type of reactor is best suited for industrial production when the processing capacity required is large? - correct answer Continuous flow reactors Read pages 28-29 to learn the definition of (thing) and the effects of temperature and pressure of (thing). In a reaction, if there is no change in total molar flow rate, temperature, or pressure than what is value of (thing)? - correct answer 0 For the decomposition of formic acid (HCOOH) to carbon dioxide and dihydrogen. Let the reaction occur in tubular reactor at 1 bar and 400K with the initial flow of formic acid being 10mol/min what is the value of (thing)? - correct answer 1 That there is no backmixing of fluid elements in the direction of flow is the underlying assumption for what idealized reactor? - correct answer Plug flow reactor If sized to obtain equivalent conversion, which type of reactor will be larger? - correct answer CSTR Which variable represents the number of reactor volumes of feed that can be treated per unit time? - correct answer Space velocity In example 8.1 the initial concentration of cyclopentadiene and benzoquinone are ..... - correct answer 0.005 In general, for a plug flow reactor, is the space time always equivalent to the mean residence time? - correct answer False For which type of reactor does the rate vary within the reactor? - correct answer PFR What must be the value of (thing) for the mean residence time to equal the space time in a plug flow reactor? - correct answer 0 For what type of reactions will the space time equal the mean residence time in a plug flow reactor? - correct answer Liquid-phase reactions and gas-phase reactions where the number of moles does not change What type of reactor is particularly appropriate for generating kinetic data in complex systems? - correct answer CSTRs Refer back to section 8.2.3. For 5 plug flow reactors of volume V connected in series, the 5 reactors can be analyzed as a single plug flow reactor with a volume 5V. - correct answer True For a series of 5 CSTRs connected in series, each volume V, they can be analyzed as a single CSTR with a volume 5V. - correct answer False For a cascade of CSTRs, choose all that apply - correct answer The various CSTRs in a cascade may all be operated at different temperatures, A cascade of CSTRs can be analyzed numerically by simply solving the CSTR design equation for each reactor in series, using the outlet concentration of the first reactor as the inlet concentration of the second, In practice, when batteries of CSTRs are used, engineering economics dictates that they all be sized equally, For a second order reaction carried out in two CSTRs, the reactor configuration yielding the minimum total volume is approximately 3% less than that obtained when two equally-sized reactors are employed, If a large enough number of reactors is used, the behavior of a cascade of CSTRs can approximate that of a single PFR. Illustrations 8.7 and 8.8 both analyze the size requirements for a cascade of one, two, or three CSTRs in series. In one case, B and C are fed in stoichiometric ratios, while in the other case, reactant C is fed in excess. How much larger must be single CSTR when B and C are fed in stoichiometric ratios? Give you answer in m3. - correct answer 13.06 For the same illustrations, how much larger is the total volume (m3) of three CSTRs when an equimolar amount of B and C are fed to the reactors? - correct answer 2.7