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2.18 The Antoine equation predicts the effect of temperature on vapour pressure by the relation: B In Ps = A T -C where A, B, and C are Antoine constants. For water, the values of the constants when the vapour pressure is in kPa and temperature is in K are found to be A = 16.26205, B = 3799.887 and C = 46.854. What are these values when (a) Vapour pressure is in mm Hg and temperature in °C. (b) Vapour pressure is in psia and temperature in °F.

2.18 The Antoine equation predicts the effect of temperature on vapour pressure by the relation: B In Ps = A T -C where A, B, and C are Antoine constants. For water, the values of the constants when the vapour pressure is in kPa and temperature is in K are found to be A = 16.26205, B = 3799.887 and C = 46.854. What are these values when (a) Vapour pressure is in mm Hg and temperature in °C. (b) Vapour pressure is in psia and temperature in °F.

Introduction to Chemical Engineering Thermodynamics
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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2.18 The Antoine equation predicts the effect of temperature on vapour pressure by the relation: B In Ps = A Т -С where A, B, and C are Antoine constants. For water, the values of the constants when the vapour pressure is in kPa and temperature is in K are found to be A = 16.26205, B = 3799.887 and C = 46.854. What are these values when (a) Vapour pressure is in mm Hg and temperature in °C. (b) Vapour pressure is in psia and temperature in °F.
Transcribed Image Text:2.18 The Antoine equation predicts the effect of temperature on vapour pressure by the relation: B In Ps = A Т -С where A, B, and C are Antoine constants. For water, the values of the constants when the vapour pressure is in kPa and temperature is in K are found to be A = 16.26205, B = 3799.887 and C = 46.854. What are these values when (a) Vapour pressure is in mm Hg and temperature in °C. (b) Vapour pressure is in psia and temperature in °F.
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