B) Express the concentrations in of each for the reacting species as a function of conversion. mol dm³ Evaluate CÃO, 6, & then calculate the concentration of ammonia and hydrogen when the conversion of H2 is 75%

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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can you please help me with problem B i will repost for Prob C

B) Express the concentrations in of each for the reacting species as a function of conversion.
mol
dm³
Evaluate CÃO, S, & then calculate the concentration of ammonia and hydrogen when the conversion of H2
is 75%
C) Suppose by chance, the reaction is elementary w/ rate constant kN2
Write the rate of
reaction solely as a function of conversion for (i) a flow reactor and (ii) a constant volume batch reactor.
40dm³
mol*s
=
Transcribed Image Text:B) Express the concentrations in of each for the reacting species as a function of conversion. mol dm³ Evaluate CÃO, S, & then calculate the concentration of ammonia and hydrogen when the conversion of H2 is 75% C) Suppose by chance, the reaction is elementary w/ rate constant kN2 Write the rate of reaction solely as a function of conversion for (i) a flow reactor and (ii) a constant volume batch reactor. 40dm³ mol*s =
The gas phase reaction
NH3
Is to be carried out isothermally first in a flow reactor. The molar feed is 50% H₂ and 50% N₂, at a
pressure of 16.4 atm and at a temperature of 227 °C.
|
1
A) Construct a complete stoichiometric table for the molar flow rate and gas-phase concentrations
using the correct limiting reactant.
Mole of Species
N2
H2
NH3
Total
3
N₂ + H₂
Initial
50
50
0
100
Changing
-16.67
-50
33.33
Assumption: 100% of the limiting reactant
Equilibrium/Final
33.33
0
33.33
66.67
0.5 N₂ + 1.5 H₂ →
0.5 mol N₂ + 1.5 H₂ → NH3
16.67 mol N₂ + 50 mol H₂ → 33.3 mol NH3
H₂is the limiting reactant & N₂is the excess reactant.
Moles of N₂= 3.33 = 50%
Moles of NH3 = 50%
NH3
Comp
50
0
50
100
Transcribed Image Text:The gas phase reaction NH3 Is to be carried out isothermally first in a flow reactor. The molar feed is 50% H₂ and 50% N₂, at a pressure of 16.4 atm and at a temperature of 227 °C. | 1 A) Construct a complete stoichiometric table for the molar flow rate and gas-phase concentrations using the correct limiting reactant. Mole of Species N2 H2 NH3 Total 3 N₂ + H₂ Initial 50 50 0 100 Changing -16.67 -50 33.33 Assumption: 100% of the limiting reactant Equilibrium/Final 33.33 0 33.33 66.67 0.5 N₂ + 1.5 H₂ → 0.5 mol N₂ + 1.5 H₂ → NH3 16.67 mol N₂ + 50 mol H₂ → 33.3 mol NH3 H₂is the limiting reactant & N₂is the excess reactant. Moles of N₂= 3.33 = 50% Moles of NH3 = 50% NH3 Comp 50 0 50 100
Expert Solution
Step 1: Explaining

Given data.
The gas-phase reaction
1 half N subscript 2 plus 3 over 2 H subscript 2 rightwards arrow N H subscript 3
is to be carried first in a flow out isothermally. reactor. The molar feed is 50%. H2 and 50% N2 at a Pressure of 16.4 atm and temperature of 227°C.

a)

1 third N subscript 2 plus H subscript 2 rightwards arrow 2 over 3 N H subscript 3

SPECIES SYMBOLINITIALCHANGES
H2AFA0F subscript A equals F subscript A 0 end subscript open parentheses 1 minus X close parentheses
N2Bnegative F subscript A 0 subscript X end subscript over 3
F subscript B equals F subscript A 0 end subscript left parenthesis O subscript B minus X subscript B right parenthesis
NH3Cfraction numerator 2 F subscript A 0 subscript X end subscript over denominator 3 end fraction
F subscript C equals 2 over 3 F subscript A 0 end subscript X
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Follow-up Question

thank you so much can you please help me w/ part C now

 

Suppose by chance, the reaction is elementary w/ rate constant  Write the rate of reaction solely­ as a function of conversion for (i) a flow reactor and (ii) a constant volume batch reactor.

 

KN2=40  dm^3/mol.s

Solution
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