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1. Determine which of the following situations will unsteady-state conditions prevail? 1. The height of water in a dam during heavyrain 2.The weight of an athlete during a marathon 3.The temperature of an ice cube as it melts A.1 and 2 B.2 and 3 C.3 only D.1, 2, and 3 E.None of the choices

1. Determine which of the following situations will unsteady-state conditions prevail? 1. The height of water in a dam during heavyrain 2.The weight of an athlete during a marathon 3.The temperature of an ice cube as it melts A.1 and 2 B.2 and 3 C.3 only D.1, 2, and 3 E.None of the choices

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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1. Determine which of the following situations will unsteady-state conditions prevail? 1. The height of water in a dam during heavyrain 2.The weight of an athlete during a marathon 3.The temperature of an ice cube as it melts A.1 and 2 B.2 and 3 C.3 only D.1, 2, and 3 E.None of the choices 2. Which of the following pairs of words are not correctly paired? A. momentum: stress B.volume: velocity C. energy: irradiance D. mass: mass flux E. none of the choices 3. The mean-value theorem applied to a property over the entire cross-section can be appro- priately used when A. the conditions are both uniform and steady-state B. the flow rate per area is variable C. when the property is variable with position D. the fluid can be treated as a continuum E. no correct choice 4.Fluids at rest is A. under pressure B. shear stress=pressure C. at a state of zero shear stress D. no correct choice E. all choices are correct 5.Which of the following is false? A. Bernoulli equation can be applied to non-newtonian fluids B. For a steady state and uniform flow, only the time partial derivativesvanish. C. The stress tensor for a Newtonian fluid is linearly related to the strain rate tensor. D. If a momentum ( " gradient exists, there will be a momentum flux d(p) Tzy dy
Transcribed Image Text:1. Determine which of the following situations will unsteady-state conditions prevail? 1. The height of water in a dam during heavyrain 2.The weight of an athlete during a marathon 3.The temperature of an ice cube as it melts A.1 and 2 B.2 and 3 C.3 only D.1, 2, and 3 E.None of the choices 2. Which of the following pairs of words are not correctly paired? A. momentum: stress B.volume: velocity C. energy: irradiance D. mass: mass flux E. none of the choices 3. The mean-value theorem applied to a property over the entire cross-section can be appro- priately used when A. the conditions are both uniform and steady-state B. the flow rate per area is variable C. when the property is variable with position D. the fluid can be treated as a continuum E. no correct choice 4.Fluids at rest is A. under pressure B. shear stress=pressure C. at a state of zero shear stress D. no correct choice E. all choices are correct 5.Which of the following is false? A. Bernoulli equation can be applied to non-newtonian fluids B. For a steady state and uniform flow, only the time partial derivativesvanish. C. The stress tensor for a Newtonian fluid is linearly related to the strain rate tensor. D. If a momentum ( " gradient exists, there will be a momentum flux d(p) Tzy dy
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