IV. True or False. .Write T if the statement is true and F if the statement is false 1.Certain foodstuffs, pharmaceuticals and biological materials, which may not be heated even to moderate temperatures in ordinary drying ,maybe freeze dried. 2.The rate of chilling or cooling are governed by the laws of unsteady state heat conduction; heat is removed by convection at the surface of the material and unsteady state conduction in the material 3.Ceramic Raschig rings and Berl saddles are the newest type of packings. 4. The flux is indirectly proportional to the gradient 5. N is the nomenclature used for flux across a plane 6. The physical state in which water exists depends on the pressure and temperature. 7. The amount of degradation of biological materials on evaporation is a function of the temperature and length of time 8. Molecular diffusion follows the rule of Knudsen. 9.The inlet temperature of the feed has a large effect on the operation of evaporation 10. One freeze drying process is based upon the heat of sublimation being supplied from the surrounding gases to the sample surface then the heat is transferred by conduction through the dried material to the ice surface.
IV. True or False. .Write T if the statement is true and F if the statement is false 1.Certain foodstuffs, pharmaceuticals and biological materials, which may not be heated even to moderate temperatures in ordinary drying ,maybe freeze dried. 2.The rate of chilling or cooling are governed by the laws of unsteady state heat conduction; heat is removed by convection at the surface of the material and unsteady state conduction in the material 3.Ceramic Raschig rings and Berl saddles are the newest type of packings. 4. The flux is indirectly proportional to the gradient 5. N is the nomenclature used for flux across a plane 6. The physical state in which water exists depends on the pressure and temperature. 7. The amount of degradation of biological materials on evaporation is a function of the temperature and length of time 8. Molecular diffusion follows the rule of Knudsen. 9.The inlet temperature of the feed has a large effect on the operation of evaporation 10. One freeze drying process is based upon the heat of sublimation being supplied from the surrounding gases to the sample surface then the heat is transferred by conduction through the dried material to the ice surface.
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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True or False
Transcribed Image Text:IV. True or False. .Write T if the statement is true and F if the statement is false
1.Certain foodstuffs, pharmaceuticals and biological materials, which may not be heated even to
moderate temperatures in ordinary drying ,maybe freeze dried.
2.The rate of chilling or cooling are governed by the laws of unsteady state heat conduction; heat is
removed by convection at the surface of the material and unsteady state conduction in the material
3.Ceramic Raschig rings and Berl saddles are the newest type of packings.
4. The flux is indirectly proportional to the gradient
5. N is the nomenclature used for flux across a plane
6. The physical state in which water exists depends on the pressure and temperature.
7. The amount of degradation of biological materials on evaporation is a function of the
temperature and length of time
8. Molecular diffusion follows the rule of Knudsen.
9.The inlet temperature of the feed has a large effect on the operation of evaporation
10. One freeze drying process is based upon the heat of sublimation being supplied from the
surrounding gases to the sample surface then the heat is transferred by conduction through the
dried material to the ice surface.
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