ELEM.PRINCIPLES OF CHEMICAL PROCESSES
ELEM.PRINCIPLES OF CHEMICAL PROCESSES
4th Edition
ISBN: 9781119571070
Author: FELDER
Publisher: WILEY
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Chapter 2, Problem 2.37P
Interpretation Introduction

(a)

Interpretation:

The value of vapor pressure at T = 185 °C should be determined by using two-point linear interpolation.

Concept introduction:

Linear interpolation equation,
If the two known values are (x1 , y1 ) and (x2 , y2 ), then the y value for some point x is,

y=y1+(xx1)y2y1x2x1

Interpretation Introduction

(b)

Interpretation:

The vapor pressure at 148.2 °C and the percentage error considering given value should be determined along with the reason for expecting the error which is associated with part (a) to be significantly less than part (b).

Concept introduction:

Linear interpolation equation,

If the two known values are (x1, y1) and (x2, y2), then the y value for some point x is,

y=y1+(xx1)y2y1x2x1

The formula to calculate percentage error is,

Percentageerror=Calculatedvalue-ActualvalueActualvalue×100%

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