Elementary Principles of Chemical Processes
Elementary Principles of Chemical Processes
4th Edition
ISBN: 9780470616291
Author: Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher: WILEY
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Chapter 3, Problem 3.17P
Interpretation Introduction

(a)

Interpretation:

Plot a calibration curve using given data.

Concept introduction:

100 g of pure water and different weighed quantities of amino acid L-isoleucine (Ile) were added to six flasks to prepare aqueous solutions. Then the densities of solutions were measured using densitometer, with the following results.

r (g Ile/100 g H2 O) 0 0.8821 1.7683 2.6412 3.4093 4.2064
Ρ (g solution /cm3) 0.98803 0.98984 0.99148 0.99297 0.99439 0.9958

A calibration curve, r=aρ+b can be drawn using above data. Where, a = slope, b = intercept, Ρ = density and r = concentration

Interpretation Introduction

(b)

Interpretation:

Using the calibration curve calculate the mass flow rate of the given stream.

Concept introduction:

100 g of pure water and different weighed quantities of amino acid L-isoleucine (Ile) were added to six flasks to prepare aqueous solutions. Then the densities of solutions were measured using densitometer. Using observed data, a calibration curve was drawn and given by the formula,

r=545.5ρ539.03

Where, Ρ = density and r = concentration

In addition, it is given as,

Density = 0.994 g / cm3, Volumetric flow rate = 150 L/h

Interpretation Introduction

(c)

Interpretation:

If the thermocouple is poorly calibrated. Would the mass flowrate estimated in section (b) be too high or too low?

Concept introduction:

100 g of pure water and different weighed quantities of amino acid L-isoleucine (Ile) were added to six flasks to prepare aqueous solutions. Then the densities of solutions were measured using densitometer. Using observed data, a calibration curve was drawn and given by the formula,

r=545.5ρ539.03

Where, Ρ = density and r = concentration

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Chapter 3 Solutions

Elementary Principles of Chemical Processes

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