1. Which of the following statements is not included when analysing air standard cycles? A. The working fluid follows an ideal gas behaviour. B. An assumption of constant specific heat is established. C. No chemical reactions take place in the cycle. D. Heat is supplied and rejected irreversibly.
1. Which of the following statements is not included when analysing air standard cycles? A. The working fluid follows an ideal gas behaviour. B. An assumption of constant specific heat is established. C. No chemical reactions take place in the cycle. D. Heat is supplied and rejected irreversibly.
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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Transcribed Image Text:1. Which of the following statements is not included when analysing air standard cycles?
A. The working fluid follows an ideal gas behaviour.
B. An assumption of constant specific heat is established.
C. No chemical reactions take place in the cycle.
D. Heat is supplied and rejected irreversibly.
2. When an isolated system undergoes a reversible process,
A. It is isentropic.
B. The entropy increases.
C. The entropy decreases.
D. Entropy stays the same.
3. If an ideal gas undergoes a process, its entropy
A. Depends on the changes in pressure.
B. Depends on the changed in temperature.
4.. What is false among the statements below?
A. If a process is reversible, there would be no change in entropy.
B. If a process is irreversible, the entropy increases.
C. The entropy of the universe is always towards the maximum.
D. When a process undergoes an adiabatic, reversible process the entropy changes.
5. When gases have the same volume, this represents their
A. Densities
B. Specific weights
C. Molecular weights
D. Specific gravities
6. Among the items listed, which does not belo
the system?
A. Pressure
B. Temperature
C. Density
D. Heat
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