Related InterviewSolutions

• Refer to Q9 and answer what is the enthalpy change for the reaction of 100.0 g of nitrogen with excess oxygen?(a) 1164 kJ(b) 1190 kJ(c) 1194 kJ(d) 1160 kJI have been asked this question in exam.Asked question is from Enthalpy Change Due to Reaction in division Energy Balance of Bioprocess Engineering
• Concentrated fermentation liquid containing 20% (w/w) gluconic acid from an evaporator has a flow rate of 2000 kg/h and a temperature 90 °C. It needs to be cooled to 6 °C in a heat exchanger with cooling water. The cooling water has a flow rate 2700 kg/h and an initial temperature 2 °C. If the cooling water leaves the heat exchanger at 50 °C, what is the rate of heat loss from gluconic acid solution to the surroundings? Assume the heat capacity of gluconic acid is 0.35 cal/g-°C^-1.(a) 69390.84 kJ/h(b) 65780.56 kJ/h(c) 67890.67 kJ/h(d) 65432.10 kJ/hThe question was asked at a job interview.Question is from Energy Balance Numericals Without Reactions in section Energy Balance of Bioprocess Engineering
• What is the process of making biomass energy?(a) Oxidation(b) Combustion(c) Reduction(d) VaporizationI had been asked this question in semester exam.I need to ask this question from Heat of Reaction for Processes with Biomass Production in division Energy Balance of Bioprocess Engineering
• Calculate ΔH if a piece of aluminum with a specific heat of 0.9 kJ-kg^-1-K^-1 and a mass of 1.6 kg is heated from 286°K to 299°K.(a) 16.52 kJ(b) 17.72 kJ(c) 18.72 kJ(d) 15.52 kJThe question was asked in an interview for job.My query is from Enthalpy Change Due to Reaction in section Energy Balance of Bioprocess Engineering
• Water is pumped from a storage tank (tank 1) to another tank (2) which is 40 ft above tank. Calculate the potential energy increase with each lb of water pumped from tank 1 to tank2.(a) 119.544 J/kg(b) 120.678 J/kg(c) 122.500 J/kg(d) 190.600 J/kgThe question was asked in my homework.This interesting question is from Energy Balance Numericals Without Reactions in portion Energy Balance of Bioprocess Engineering
• ”Thermal conversion (destruction) of organics in the absence of oxygen”, which term is used for this process?(a) Reduction(b) Pyrolysis(c) Combustion(d) GasificationThe question was posed to me during an interview.This interesting question is from Heat of Reaction for Processes with Biomass Production topic in chapter Energy Balance of Bioprocess Engineering
• In this problem we wish to develop the combustion equation and determine the air-fuel ratio for the complete combustion of n-Butane (C4H10) with theoretical air.(a) 15.4 kg-air/kg-fuel(b) 12.5 kg-air/kg-fuel(c) 12.4 kg-air/kg-fuel(d) 15.5 kg-air/kg-fuelThe question was asked in quiz.My question comes from Heat of Reaction for Processes with Biomass Production in section Energy Balance of Bioprocess Engineering
• How much work can be obtained from an adiabatic, continuous-flow turbine, if steam at 60 bar and 500^oC is used and the outlet stream is at 1 bar and 400^oC?(a) -144 kJ/kg(b) -155 kJ/kg(c) -166 kJ/kg(d) -177 kJ/kgI had been asked this question in an international level competition.This interesting question is from Energy Balance Numericals Without Reactions topic in portion Energy Balance of Bioprocess Engineering
• If 35,000kg of whole milk containing 4% fat is to be separated in a 6 hour period into skim milk with 0.45% fat and cream with 45% fat, what are the flow rates of the two output streams from a continuous centrifuge which accomplishes this separation? (Basis 1 hour’s flow of whole milk.)(a) 5678 kg/hr(b) 5368 kg/hr(c) 2567 kg/hr(d) 2578 kg/hrThis question was addressed to me during an interview.This intriguing question comes from Energy Balance Numericals Without Reactions topic in portion Energy Balance of Bioprocess Engineering
• 08 kJ/mol(a) 455.6 mol/hr(b) 457.2 mol/hr(c) 450.9 mol/hr(d) 454.5 mol/hrThe question was asked in an interview for job.I want to ask this question from Heat of Reaction for Processes with Biomass Production topic in portion Energy Balance of Bioprocess Engineering