Question 1: In a reaction vessel with a volume of 140 L, initially, substance A is present at a concentration of 2 mol/L. The reactor operates with a flow rate of 2 L/minute and contains substance B at a concentration of 0.5 g/L. Meanwhile, the flow valve is open, and a stream with a flow rate of 2 L/minute is being emptied. The specific rate constant (k) for the reaction A B is given as 0.002 mol/L. minute.a) Derive the expression relating the exit concentration of substance A to time.b) After what duration from the start does the concentration of substance A inside the reactor decrease to half? Question2: In an experiment conducted in the laboratory, the following data were obtained for the transformation of substance A into substance B:t(minute) CA mmol/L0 24.0 5 13.2 10 7.2 15 4.0 20 2.225 1.2 30 0.7 40 0.2 a) What is the order (n) and rate constant (k) of this reaction?b) In a filled CSTR reaction vessel with an initial concentration of 24 mmol /LA substance in a volume of 100 L, only the outlet stream is taken at a flow rate of \(Q_{\text{outlet}} = 4\, \text{L/ minute}\). At the 20th minute and when the reactor is completely emptied, what is the concentration of substance B in the outlet stream?Question3: Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide (H2O2) into water and oxygen. The changes in hydrogen peroxide concentration over time under reaction conditions of 30\deg C and pH 6.76 in a batch reactor are summarized in the table below:t(minute) C(H202) (mol/L )0 0.02 10 0.017720 0.0158 50 0.0106 100 0.005 a) Calculate the Michealis - Menten parameters Vmax and Km. b) If the total enzyme concentration is tripled, calculate the substrate concentration after 20 minutes.
Question 1: In a reaction vessel with a volume of 140 L, initially, substance A is present at a concentration of 2 mol/L. The reactor operates with a flow rate of 2 L/minute and contains substance B at a concentration of 0.5 g/L. Meanwhile, the flow valve is open, and a stream with a flow rate of 2 L/minute is being emptied. The specific rate constant (k) for the reaction A B is given as 0.002 mol/L. minute.a) Derive the expression relating the exit concentration of substance A to time.b) After what duration from the start does the concentration of substance A inside the reactor decrease to half? Question2: In an experiment conducted in the laboratory, the following data were obtained for the transformation of substance A into substance B:t(minute) CA mmol/L0 24.0 5 13.2 10 7.2 15 4.0 20 2.225 1.2 30 0.7 40 0.2 a) What is the order (n) and rate constant (k) of this reaction?b) In a filled CSTR reaction vessel with an initial concentration of 24 mmol /LA substance in a volume of 100 L, only the outlet stream is taken at a flow rate of \(Q_{\text{outlet}} = 4\, \text{L/ minute}\). At the 20th minute and when the reactor is completely emptied, what is the concentration of substance B in the outlet stream?Question3: Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide (H2O2) into water and oxygen. The changes in hydrogen peroxide concentration over time under reaction conditions of 30\deg C and pH 6.76 in a batch reactor are summarized in the table below:t(minute) C(H202) (mol/L )0 0.02 10 0.017720 0.0158 50 0.0106 100 0.005 a) Calculate the Michealis - Menten parameters Vmax and Km. b) If the total enzyme concentration is tripled, calculate the substrate concentration after 20 minutes.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:Question 1: In a reaction vessel with a volume of 140 L, initially, substance A is present at a concentration of 2 mol/L.
The reactor operates with a flow rate of 2 L/minute and contains substance B at a concentration of 0.5 g/L. Meanwhile,
the flow valve is open, and a stream with a flow rate of 2 L/minute is being emptied. The specific rate constant (k) for the
reaction A B is given as 0.002 mol/L. minute.a) Derive the expression relating the exit concentration of substance A to
time.b) After what duration from the start does the concentration of substance A inside the reactor decrease to half?
Question2: In an experiment conducted in the laboratory, the following data were obtained for the transformation of
substance A into substance B:t(minute) CA mmol/L0 24.0 5 13.2 10 7.2 15 4.0 20 2.225 1.2 30 0.7 40 0.2 a) What is the
order (n) and rate constant (k) of this reaction?b) In a filled CSTR reaction vessel with an initial concentration of 24 mmol
/LA substance in a volume of 100 L, only the outlet stream is taken at a flow rate of \(Q_{\text{outlet}} = 4\, \text{L/
minute}\). At the 20th minute and when the reactor is completely emptied, what is the concentration of substance B in
the outlet stream?Question3: Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide (H202) into
water and oxygen. The changes in hydrogen peroxide concentration over time under reaction conditions of 30\deg C
and pH 6.76 in a batch reactor are summarized in the table below:t(minute) C(H202) (mol/L
)0 0.0210 0.017720 0.0158 50 0.0106 100 0.005 a) Calculate the Michealis - Menten parameters Vmax and Km. b) If the
total enzyme concentration is tripled, calculate the substrate concentration after 20 minutes.
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