Categories
Biomedical Engineering

Learning Goal: I’m working on a biomedical engineering question and need an expl

Learning Goal: I’m working on a biomedical engineering question and need an explanation and answer to help me learn.
In an attempt to provide a means of generating NO cheaply, gaseous NH3 is burned with 20% excess
O2:
4NH3 + 5O2 → 4NO + 6H2O
The reaction is 70% complete. The NO is separated from unreacted NH3, and the latter recycled as
shown in Figure 1.
a) Calculate the moles of NO formed per
100 moles of NH3 fed.
b) Calculate the moles of NH3 recycled per
mole of NO formed.
Perform a Degree of Freedom analysis. State
your assumptions and show all your work

Categories
Biomedical Engineering

Learning Goal: I’m working on a biomedical engineering question and need an expl

Learning Goal: I’m working on a biomedical engineering question and need an explanation and answer to help me learn.
A pharmaceutical company has decided to test the feasibility of manufacturing a new drug using
biochemical engineering. In this approach, a valuable intermediate, intA, will be produced from raw
materials using a genetically engineered bacterial strain. After undergoing a series of chemical steps,
this intermediate will then be converted to the final product.
The following information is supplied by the
technical support group:
 IntA is relatively unstable and has to
be maintained at 5 °C prior to
entering the reactor.
 The flow rate of the inlet stream is 4.0
L/min.
 The reactor operates at 25 °C and 1
atm.
 The specific heat capacity of the
reactant and product streams is 1
cal/(g.°C) and is constant.
 The density of the reactant and
product streams is 2.0 g/cm3 and is a
constant.
 One mole of intA forms 2 moles of
intB with negligible by-product
formation:
intA → 2 intB
 The reaction of intA under the given conditions does not go to completion. When 2.0 mol/L of
intA flow into the reactor, 0.1 mol/L remains unreacted.
 The standard heat of formation of intA is -2050 kJ/mol
 The standard heat of formation of intB is -1560 kJ/mol
 Molecular weights of intA and intB are 1080 g/mol and 540 g/mol, respectively.
 The reactor is well insulated.
 The stirrer does work on the system at a rate of 10 W.
Perform a Degree of Freedom analysis. State your assumptions and show all your work.
a) Calculate the heat requirement to convert intA to another more stable intermediate, IntB, using a
2-L reactor (Figure 2).
b) Calculate the rate of heat addition or removal to maintain the reactor at the desired temperature.

Categories
Biomedical Engineering

Learning Goal: I’m working on a biomedical engineering question and need an expl

Learning Goal: I’m working on a biomedical engineering question and need an explanation and answer to help me learn.
In an attempt to provide a means of generating NO cheaply, gaseous NH3 is burned with 20% excess
O2:
4NH3 + 5O2 → 4NO + 6H2O
The reaction is 70% complete. The NO is separated from unreacted NH3, and the latter recycled as
shown in Figure 1.
a) Calculate the moles of NO formed per
100 moles of NH3 fed.
b) Calculate the moles of NH3 recycled per
mole of NO formed.
Perform a Degree of Freedom analysis. State
your assumptions and show all your work

Categories
Biomedical Engineering

Learning Goal: I’m working on a biomedical engineering question and need an expl

Learning Goal: I’m working on a biomedical engineering question and need an explanation and answer to help me learn.
A pharmaceutical company has decided to test the feasibility of manufacturing a new drug using
biochemical engineering. In this approach, a valuable intermediate, intA, will be produced from raw
materials using a genetically engineered bacterial strain. After undergoing a series of chemical steps,
this intermediate will then be converted to the final product.
The following information is supplied by the
technical support group:
 IntA is relatively unstable and has to
be maintained at 5 °C prior to
entering the reactor.
 The flow rate of the inlet stream is 4.0
L/min.
 The reactor operates at 25 °C and 1
atm.
 The specific heat capacity of the
reactant and product streams is 1
cal/(g.°C) and is constant.
 The density of the reactant and
product streams is 2.0 g/cm3 and is a
constant.
 One mole of intA forms 2 moles of
intB with negligible by-product
formation:
intA → 2 intB
 The reaction of intA under the given conditions does not go to completion. When 2.0 mol/L of
intA flow into the reactor, 0.1 mol/L remains unreacted.
 The standard heat of formation of intA is -2050 kJ/mol
 The standard heat of formation of intB is -1560 kJ/mol
 Molecular weights of intA and intB are 1080 g/mol and 540 g/mol, respectively.
 The reactor is well insulated.
 The stirrer does work on the system at a rate of 10 W.
Perform a Degree of Freedom analysis. State your assumptions and show all your work.
a) Calculate the heat requirement to convert intA to another more stable intermediate, IntB, using a
2-L reactor (Figure 2).
b) Calculate the rate of heat addition or removal to maintain the reactor at the desired temperature.