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You are now a 4th year student, undergoing your research work. You need to increase the temperature of a fluid without heat transfer taking place, meaning the process is adiabatic. The fluid is placed in a 1L beaker, isolated thermally, and then agitated with the use of a propeller connected to a pulley with a weight. The fluid is stirred for a significant amount of time and the pulley and weight is then replaced with a battery. Again, the fluid is agitated. The battery is then replaced with an electric motor, then agitation again. Three different sources of energy were used during agitation. (a) Will the temperature of the fluid really increase in an adiabatic process? Explain. (b) Upon measuring the amount of work done on the water for each power Source (pulley and weight, battery, electric motor) mentioned in the problem, you noticed that they are all equal. How is that possible?

You are now a 4th year student, undergoing your research work. You need to increase the temperature of a fluid without heat transfer taking place, meaning the process is adiabatic. The fluid is placed in a 1L beaker, isolated thermally, and then agitated with the use of a propeller connected to a pulley with a weight. The fluid is stirred for a significant amount of time and the pulley and weight is then replaced with a battery. Again, the fluid is agitated. The battery is then replaced with an electric motor, then agitation again. Three different sources of energy were used during agitation. (a) Will the temperature of the fluid really increase in an adiabatic process? Explain. (b) Upon measuring the amount of work done on the water for each power Source (pulley and weight, battery, electric motor) mentioned in the problem, you noticed that they are all equal. How is that possible?

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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You are now a 4th year student, undergoing your research work. You need to increase the temperature of a fluid without heat transfer taking place, meaning the process is adiabatic. The fluid is placed in a 1 L beaker, isolated thermally, and then agitated with the use of a propeller connected to a pulley with a weight. The fluid is stirred for a significant amount of time and the pulley and weight is then replaced with a battery. Again, the fluid is agitated. The battery is then replaced with an electric motor, then agitation again. Three different sources of energy were used during agitation. (a) Will the temperature of the fluid really increase in an adiabatic process? Explain. (b) Upon measuring the amount of work done on the water for each power source (pulley and weight, battery, electric motor) mentioned in the problem, you noticed that they are all equal. How is that possible?
Transcribed Image Text:You are now a 4th year student, undergoing your research work. You need to increase the temperature of a fluid without heat transfer taking place, meaning the process is adiabatic. The fluid is placed in a 1 L beaker, isolated thermally, and then agitated with the use of a propeller connected to a pulley with a weight. The fluid is stirred for a significant amount of time and the pulley and weight is then replaced with a battery. Again, the fluid is agitated. The battery is then replaced with an electric motor, then agitation again. Three different sources of energy were used during agitation. (a) Will the temperature of the fluid really increase in an adiabatic process? Explain. (b) Upon measuring the amount of work done on the water for each power source (pulley and weight, battery, electric motor) mentioned in the problem, you noticed that they are all equal. How is that possible?
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