3- A dryer takes in wet timber (20.1% water) and reduces the water content to 8.6%. You want to determine the kilograms of water removed per kilogram of timber that enters the process. Which choice gives the material balances correctly to solve the problem for F= 100 kg wet timber entering the process? drying 8.6 % water 91.4% dry timber 20.1 % water 79.9 % dry timber 100 % water a) O Total balance: 100 - P+W dry timber balance: 79.9 - Px0.914 + W b) O Total balance: 100 - P+ W water balance: 20.1 + W- Px0.086 OO Total balance (kg): 100=P+W water balance (kg): 20.1 = Px0.086 d) O Total balance (kg): 100 = P+W dry timber balance (kg): 79.9 = Px0.914

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
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3- A dryer takes in wet timber (20.1% water) and reduces the water content to 8.6%. You want to determine the
kilograms of water removed per kilogram of timber that enters the process. Which choice gives the material balances
correctly to solve the problem for F 100 kg wet timber entering the process?
drying 8.6 % water
91.4% dry timber
20.1 % water
79.9 % dry timberl
100 % water
a) O Total balance: 100 - P+ W
dry timber balance: 79.9 - Px0.914 + W
b) O Total balance: 100 - P + W
water balance: 20.1 + W- Px0.086
c)
Total balance (kg): 100 - P+ W
water balance (kg): 20.1 - Px0.086
d) O Total balance (kg): 100 = P +W
dry timber balance (kg): 79.9 = Px0.914
Transcribed Image Text:3- A dryer takes in wet timber (20.1% water) and reduces the water content to 8.6%. You want to determine the kilograms of water removed per kilogram of timber that enters the process. Which choice gives the material balances correctly to solve the problem for F 100 kg wet timber entering the process? drying 8.6 % water 91.4% dry timber 20.1 % water 79.9 % dry timberl 100 % water a) O Total balance: 100 - P+ W dry timber balance: 79.9 - Px0.914 + W b) O Total balance: 100 - P + W water balance: 20.1 + W- Px0.086 c) Total balance (kg): 100 - P+ W water balance (kg): 20.1 - Px0.086 d) O Total balance (kg): 100 = P +W dry timber balance (kg): 79.9 = Px0.914
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