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The solubility of sodium sulfate is 40 parts Na2SO4 per 100 parts of water at 30°C, and 13.5 parts at 15°C. The latent heat of crystallization (liberated when crystals form) is 18,000 g-cal per gmol Na2SO4. Glauber’s salt (Na2SO4•10H2O) is to be made in a Swenson-Walker  crystallizer by cooling a solution, saturated at 30°C, to 15°C. Cooling water enters at 10°C and leaves at 20°C. The overall heat transfer coefficient in the crystallizer is 25 BTU/h•ft2•°F and each foot of crystallizer has 3 sq ft of cooling surface. How many 10-ft units of crystallizer will be required to produce 1 ton/h of Glauber’s Salt

The solubility of sodium sulfate is 40 parts Na2SO4 per 100 parts of water at 30°C, and 13.5 parts at 15°C. The latent heat of crystallization (liberated when crystals form) is 18,000 g-cal per gmol Na2SO4. Glauber’s salt (Na2SO4•10H2O) is to be made in a Swenson-Walker  crystallizer by cooling a solution, saturated at 30°C, to 15°C. Cooling water enters at 10°C and leaves at 20°C. The overall heat transfer coefficient in the crystallizer is 25 BTU/h•ft2•°F and each foot of crystallizer has 3 sq ft of cooling surface. How many 10-ft units of crystallizer will be required to produce 1 ton/h of Glauber’s Salt

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
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The solubility of sodium sulfate is 40 parts Na2SO4 per 100 parts of water at 30°C, and 13.5 parts at 15°C. The latent heat of crystallization (liberated when crystals form) is 18,000 g-cal per gmol Na2SO4. Glauber’s salt (Na2SO4•10H2O) is to be made in a Swenson-Walker 
crystallizer by cooling a solution, saturated at 30°C, to 15°C. Cooling water enters at 10°C and leaves at 20°C. The overall heat transfer coefficient in the crystallizer is 25 BTU/h•ft2•°F and each foot of crystallizer has 3 sq ft of cooling surface. How many 10-ft units of crystallizer will be required to produce 1 ton/h of Glauber’s Salt.

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