thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100°F. After the thermometer reaches steady state, it is suddenly placed in a bath at 110°F at t = 0 and left there for 1 min, after which it is immediately returned to the bath at 100°F. (a) Draw a sketch showing the variation of the thermometer reading with time. (b) Calculate the thermometer reading at t = 0.5 min and at t = 2.0 min.
thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100°F. After the thermometer reaches steady state, it is suddenly placed in a bath at 110°F at t = 0 and left there for 1 min, after which it is immediately returned to the bath at 100°F. (a) Draw a sketch showing the variation of the thermometer reading with time. (b) Calculate the thermometer reading at t = 0.5 min and at t = 2.0 min.
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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3. A thermometer having first-order dynamics with a time constant of 1 min is placed in
a temperature bath at 100°F. After the thermometer reaches steady state, it is suddenly
placed in a bath at 110°F at t = 0 and left there for 1 min, after which it is immediately
returned to the bath at 100°F. (a) Draw a sketch showing the variation of the
thermometer reading with time. (b) Calculate the thermometer reading at t = 0.5 min
and at t = 2.0 min.
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