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Question 3 How many milliliters of water at 23°C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95°C so that the resulting combination will have a temperature of 60°C? Assume that coffee and water have the same density and the same specific heat. To solve the above problem we must: (a) Calculate the amount of heat to be given up by the coffee for its temperature to go down from 95°C to 60°C = J (b) Calculate the amount of heat to be absorbed by the water for its temperature to go up from 23°C to 60°C = J (c) Calculate the amount of water at 23°C we need to add to the coffee = g

Question 3 How many milliliters of water at 23°C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95°C so that the resulting combination will have a temperature of 60°C? Assume that coffee and water have the same density and the same specific heat. To solve the above problem we must: (a) Calculate the amount of heat to be given up by the coffee for its temperature to go down from 95°C to 60°C = J (b) Calculate the amount of heat to be absorbed by the water for its temperature to go up from 23°C to 60°C = J (c) Calculate the amount of water at 23°C we need to add to the coffee = g

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
Problem 1.1P
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Question 3 How many milliliters of water at 23°C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95°C so that the resulting combination will have a temperature of 60°C? Assume that coffee and water have the same density and the same specific heat. To solve the above problem we must: (a) Calculate the amount of heat to be given up by the coffee for its temperature to go down from 95°C to 60°C = J (b) Calculate the amount of heat to be absorbed by the water for its temperature to go up from 23°C to 60°C = J (c) Calculate the amount of water at 23°C we need to add to the coffee = g
Transcribed Image Text:Question 3 How many milliliters of water at 23°C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95°C so that the resulting combination will have a temperature of 60°C? Assume that coffee and water have the same density and the same specific heat. To solve the above problem we must: (a) Calculate the amount of heat to be given up by the coffee for its temperature to go down from 95°C to 60°C = J (b) Calculate the amount of heat to be absorbed by the water for its temperature to go up from 23°C to 60°C = J (c) Calculate the amount of water at 23°C we need to add to the coffee = g
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