Elementary Principles of Chemical Processes, Binder Ready Version
Elementary Principles of Chemical Processes, Binder Ready Version
4th Edition
ISBN: 9781118431221
Author: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher: WILEY
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Chapter 3, Problem 3.43P
Interpretation Introduction

(a)

Interpretation:

The units of k should be determined.

Concept introduction:

It is given that a reaction A ⟶B is carried out in a lab scale reactor. The concentration of A vary with time as follows,

CA=CA0exp(kt)

Where CA0 = initial concentration of A, k = Constant and t = time

Interpretation Introduction

(b)

Interpretation:

Verify the proposed rate law graphically and estimate CA0 and k.

Concept introduction:

It is given that a reaction A ⟶B is carried out in a lab scale reactor. The concentration of A vary with time as follows,

CA=CA0exp(kt)

Where CA0 = initial concentration of A, k = Constant and t = time

Following data are given,

t (min) 0.5 1 1.5 2 3 5 10
CA (lb-mole/ft3) 1.02 0.84 0.69 0.56 0.38 0.17 0.02

Interpretation Introduction

(c)

Interpretation:

Convert the formula to given units and estimate the molarity at t=265 s.

Concept introduction:

It is given that a reaction A ⟶B is carried out in a lab scale reactor. The concentration of A vary with time as follows,

CA=CA0exp(kt)

Where CA0 = initial concentration of A, k = Constant and t = time

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Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HF is a weak acid. acids: 0.2 mol of KOH is added to 1.0 L of a 0.5 M HF solution. bases: Х other: ☐ acids: 0.10 mol of HI is added to 1.0 L of a solution that is 1.4M in both HF and NaF. bases: other: ☐ 0,0,... ด ? 18 Ar
Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that NH3 is a weak base. acids: ☐ 1.8 mol of HCl is added to 1.0 L of a 1.0M NH3 bases: ☐ solution. other: ☐ 0.18 mol of HNO3 is added to 1.0 L of a solution that is 1.4M in both NH3 and NH₁Br. acids: bases: ☐ other: ☐ 0,0,... ? 000 18 Ar B 1

Chapter 3 Solutions

Elementary Principles of Chemical Processes, Binder Ready Version

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