2.24. A stream of warm water is produced in a steady-flow mixing process by combining1.0 kg.s-¹ of cool water at 25°C with 0.8 kg-s-¹ of hot water at 75°C. During mixing,heat is lost to the surroundings at the rate of 30 kJ.s-¹. What is the temperature of thewarm water stream? Assume the specific heat of water is constant at 4.18 kJ·kg¯¹.K−¹.

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Answered: A stream of warm water is produced in a…

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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Question

2.24. A stream of warm water is produced in a steady-flow mixing process by combining
1.0 kg.s-¹ of cool water at 25°C with 0.8 kg-s-¹ of hot water at 75°C. During mixing,
heat is lost to the surroundings at the rate of 30 kJ.s-¹. What is the temperature of the
warm water stream? Assume the specific heat of water is constant at 4.18 kJ·kg¯¹.K−¹.

Expert Solution

Step 1: given

$g i v e n space equals space c o o l space w a t e r space t e m p space equals space 25 to the power of o c space equals space 298 space K w a r m space w a t e r space m a s s space equals space 0.8 space K g c o o l space w a t e r space m a s s space equals space 1 space K g h e a t space l o s t space t o space t h e space s u r r o u n d i n g space equals space 30 space K J s p e c i f i c space h e a t space o f space w a t e r space equals space 4.18 space K j K g to the power of negative 1 end exponent K to the power of negative 1 end exponent$