We need 2,000 cm³ of an antifreeze solution consisting of 30-mol % methanol in water. What volumes of pure methanol and of pure water at 25°C must be mixed to form the 2,000 cm antifreeze, also at 25°C? Partial molar volumes for methanol and water in a 30-mol% methanol solution and their pure-species molar volumes, both at 25°C, are: Methanol (1): = 38.632 cm³ mol-¹ Water (2): V₂= 17.765 cm³ mol-¹ V₁ = 40.727 cm³ mol-¹ F V2 18.068 cm³ mol-¹
We need 2,000 cm³ of an antifreeze solution consisting of 30-mol % methanol in water. What volumes of pure methanol and of pure water at 25°C must be mixed to form the 2,000 cm antifreeze, also at 25°C? Partial molar volumes for methanol and water in a 30-mol% methanol solution and their pure-species molar volumes, both at 25°C, are: Methanol (1): = 38.632 cm³ mol-¹ Water (2): V₂= 17.765 cm³ mol-¹ V₁ = 40.727 cm³ mol-¹ F V2 18.068 cm³ mol-¹
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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![We need 2,000 cm³ of an antifreeze solution consisting of 30-mol % methanol in water. What
volumes of pure methanol and of pure water at 25°C must be mixed to form the 2,000 cm³
antifreeze, also at 25°C? Partial molar volumes for methanol and water in a 30-mol%
methanol solution and their pure-species molar volumes, both at 25°C, are:
Methanol (1): √ = 38.632 cm³ mol-¹
Water (2): V₂17.765 cm³ mol-¹
V₁ = 40.727 cm³ mol-¹
V₂ = 18.068 cm³ mol-¹](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F107f7ca0-923a-4b4c-8887-6d7ab9f69302%2Faa8c8bc5-d961-4efe-b861-b0ec3b28c64e%2Fd0ij74s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:We need 2,000 cm³ of an antifreeze solution consisting of 30-mol % methanol in water. What
volumes of pure methanol and of pure water at 25°C must be mixed to form the 2,000 cm³
antifreeze, also at 25°C? Partial molar volumes for methanol and water in a 30-mol%
methanol solution and their pure-species molar volumes, both at 25°C, are:
Methanol (1): √ = 38.632 cm³ mol-¹
Water (2): V₂17.765 cm³ mol-¹
V₁ = 40.727 cm³ mol-¹
V₂ = 18.068 cm³ mol-¹
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