Answered: An experiment is carried out to…

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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An experiment is carried out to determine the enthalpy of combustion of butan-1-ol. The experimental results are recorded in the following table: Volume of water in a metal can : 500.0 ml Initial temperature of water : 22.3 C Final temperature of water : 33.4 C Mass of butan-1-ol + spirit burner before heating : 214.63 g Mass of butan-1-ol + spirit burner after heating : 213.87 (a)Calculate (i) the amount of heat, in KJ , absorbed by the water when it was heated by burning butan-1-ol. (ii)the experimental value of the enthalpy of combustion of butan-1-ol, in KJ/mol (b)Given that the exact value of heat of combustion of butan-1-ol is 2678 KJ/mol. What is the percentage of the energy from the combustion of butan-1-ol above that was transferred to the water? Account for this difference, if any.

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