A 100-g sample of acetic acid is heated from 4°C until it melts at 16.7°C. The liquid is further heated until it reaches 30°C. Heating was done under an atmospheric fume hood. Calculate the heat required to perform such transformation. The latent heat of fusion of acetic acid is 46.68 cal/g. The specific heat capacity of solid acetic acid varies with temperature and is given by Cp(s) = 0.330 + 0.0080T, where T is in °C and Cp(s) is in cal/g-°C. The specific heat capacity of liquid acetic acid is given by Cp) = 139640 – 320.8T + 0.8985T², where T is in Kelvins and Cp(1) is in J/kmol-K.

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
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A 100-g sample of acetic acid is heated from 4°C until it melts at 16.7°C. The
liquid is further heated until it reaches 30°C. Heating was done under an atmospheric fume
hood. Calculate the heat required to perform such transformation. The latent heat of fusion
of acetic acid is 46.68 cal/g. The specific heat capacity of solid acetic acid varies with
temperature and is given by Cp(s) = 0.330 + 0.0080T, where T is in °C and Cp(s) is in
cal/g-°C. The specific heat capacity of liquid acetic acid is given by Cp) = 139640 –
320.87 + 0.8985T², where T is in Kelvins and Cp(1) is in J/kmol-K.
Transcribed Image Text:A 100-g sample of acetic acid is heated from 4°C until it melts at 16.7°C. The liquid is further heated until it reaches 30°C. Heating was done under an atmospheric fume hood. Calculate the heat required to perform such transformation. The latent heat of fusion of acetic acid is 46.68 cal/g. The specific heat capacity of solid acetic acid varies with temperature and is given by Cp(s) = 0.330 + 0.0080T, where T is in °C and Cp(s) is in cal/g-°C. The specific heat capacity of liquid acetic acid is given by Cp) = 139640 – 320.87 + 0.8985T², where T is in Kelvins and Cp(1) is in J/kmol-K.
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