Related InterviewSolutions

• For the parallel reaction, A→B of order n1 and A→C of order n2, if B is the desired product, then which of the following reactor/ combination of reactors is used if n1 > n2?(a) CSTR(b) CSTR followed by Bubbling bed reactor(c) PFR(d) CSTR followed by PFRThis question was posed to me in a national level competition.I'm obligated to ask this question of Parallel Reactions Design topic in portion Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• For the parallel reaction, A→B, represented as (-rA) = k1CA^5and A→C represented as (-rA) = k2CA^3, theideal reactor preferred is ____(a) CSTR(b) CSTRs in parallel(c) CSTRs in series(d) PFRI had been asked this question in my homework.My question comes from Parallel Reactions Design in portion Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• The reaction yield is defined as the ratio of ____(a) Moles of reactant reacted to the moles of product formed(b) Moles of product formed to the moles of reactant reacted(c) Moles of desired product formed to the moles of undesired material formed(d) Moles of product formed to the moles of reactant fedThis question was addressed to me during an online exam.Query is from Parallel Reactions Design topic in chapter Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• Selectivity in parallel reactions is defined as the ratio of___(a) Moles of desired product formed to the moles of undesired material formed(b) Moles of undesired product formed to the moles of desired material formed(c) Moles of product formed to the moles of reactant consumed(d) Moles of reactant consumed to the moles of product formedI had been asked this question in homework.My question is from Parallel Reactions Design in division Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• For the parallel reaction, A→B and A→C, if B is the desired product and the reaction A→B is of positive order n1 and C is the undesired product and the reaction A→C is of negative order n2, then increasing the concentration of A _____(a) Decreases desired product selectivity(b) Increases desired product selectivity(c) Initially increases and then decreases desired product selectivity(d) Does not affect desired product selectivityThe question was posed to me by my school principal while I was bunking the class.I would like to ask this question from Parallel Reactions Design in chapter Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• If the reactions A→B and A→C are represented as (-rA) = k1CA^3 and (-rA) = k2CA^6 of activation energies 130 and 150 J/ mol, then which of the following is the right selection of process parameters to increase selectivity of B?(a) CSTR, High temperature(b) PFR, High temperature(c) CSTR, Low temperature(d) PFR, Low temperatureThis question was posed to me by my college director while I was bunking the class.I'm obligated to ask this question of Parallel Reactions Design topic in portion Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• The autocatalyst in microbial fermentation reactions is:(a) Organic feed(b) Microbes(c) Enzyme(d) Product chemicalThe question was asked during an online interview.This key question is from Autocatalytic Reactions topic in division Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• If for the parallel reactions A→B and A→C, if the final concentration of B is 26 mol/ L and A converted is 36 mol/L, then the final concentration of C is ____(a) 15(b) 5(c) 6(d) 10This question was addressed to me in class test.This key question is from Parallel Reactions Design in portion Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• Which of the following reactors is used for carrying out autocatalytic reactions?(a) CSTR(b) PFR(c) Batch reactor(d) A combination of CSTR and PFR.This question was addressed to me in an interview.My query is from Autocatalytic Reactions topic in division Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering
• The final concentration of product is related to the yield as ____(a) Final concentration = Yield × Reactant fed(b) Final concentration = Yield / Reactant fed(c) Final concentration = Yield × Reactant converted(d) Final concentration = Yield / Reactant fedI got this question in an internship interview.My question comes from Parallel Reactions Design in portion Potpourri of Multiple Reactions, Design for Single & Parallel Reactions of Chemical Reaction Engineering