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Q.1: n-hexane boils at 68.7 °C at 1.013 bar and the heat of Vaporization is 28850 J/mol. Calculate Its Entropy ?

Q.1: n-hexane boils at 68.7 °C at 1.013 bar and the heat of Vaporization is 28850 J/mol. Calculate Its Entropy ?

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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General Chemistry M.SC Omar Hisham Sheet 1 Q.1: n-hexane boils at 68.7 °C at 1.013 bar and the heat of Vaporization is 28850 J/mol. Calculate Its Entropy ? Q.2: A mole of N2 is allowed to expand from 0.5 L to 10 L at constant Temperature. Calculate its Entropy ? Q.3: What is the change in Entropy of 1 mole of He in the following process : He ( 298 K, 1 bar) - He ( 100 K, 10 bar ) 0.4: Calculate AS when 1 kg of copper at 100°C is placed in 2 kg of water at 0°C in an insulated container at pressure of 1 atm. Given that : Cpeu= 0.1, CPH20 = 1 J/g.K Q.5: A mole of gas is heated to 1000 K at constant volume. The gas may be treated as ideal gas. Cv = 20.942 J/mol.K. Find AS if you know that the initial state of the gas was at 100 kpa and 25 m volume ? 0.6: Calculate AS (for the system) when the state of 2 mole of a perfect gas molecules, for which Cp 3.5 R, is changed from 25°C and 1.5 atm to 135°C and 7 atm.?
Transcribed Image Text:General Chemistry M.SC Omar Hisham Sheet 1 Q.1: n-hexane boils at 68.7 °C at 1.013 bar and the heat of Vaporization is 28850 J/mol. Calculate Its Entropy ? Q.2: A mole of N2 is allowed to expand from 0.5 L to 10 L at constant Temperature. Calculate its Entropy ? Q.3: What is the change in Entropy of 1 mole of He in the following process : He ( 298 K, 1 bar) - He ( 100 K, 10 bar ) 0.4: Calculate AS when 1 kg of copper at 100°C is placed in 2 kg of water at 0°C in an insulated container at pressure of 1 atm. Given that : Cpeu= 0.1, CPH20 = 1 J/g.K Q.5: A mole of gas is heated to 1000 K at constant volume. The gas may be treated as ideal gas. Cv = 20.942 J/mol.K. Find AS if you know that the initial state of the gas was at 100 kpa and 25 m volume ? 0.6: Calculate AS (for the system) when the state of 2 mole of a perfect gas molecules, for which Cp 3.5 R, is changed from 25°C and 1.5 atm to 135°C and 7 atm.?
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