Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
Question
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Chapter 9, Problem 13QAP
Interpretation Introduction

Interpretation:

The vapor pressure of octane is obtained by the following data-

Vp(mmHg) 10 40 100 400
t (°C) 19.2 45.1 65.7 104.0

The graph between ln(vp) and 1/T is to be plotted. The heat of vaporization of octane is to be estimated by this graph.

Concept introduction:

The relation between pressure, temperature and change in enthalpy of vaporization is as follows:

lnP=AΔHvapR(1T)

Here,

P = pressure

T = temperature

ΔHvap = heat of vaporization = slope

A = y-intercept from the graph.

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Chapter 9 Solutions

Chemistry: Principles and Reactions

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