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Q1: Helium flows steadily and adiabatically from a reservoir, the reservoir pressure is 30 bar; its velocity is negligible and its temperature is 70 F. What are the temperature, velocity, pressure and density of the helium at the point where its speed is twice the speed of sound? Khelium-cp/cv =1.667, MW= 4 g/mol. Q2: Air flows isentropically from a reservoir through a nozzle; PR = 60 psia, and TR= 100 F. At some point in the nozzle where the Mach number = 0.6, what are the pressure, temperature, and velocity at that point? K= Cp/Cv = 1.4, MW = 29 g/mol. Q3: A pump is pumping 50 gal/ min of water from a pressure of 30 psiato a pressure of 100 psia. The changes in elevation and velocity are negligible. The motor that drives the pump supplies 2.8 hp. What is the efficiency of the pump?

Q1: Helium flows steadily and adiabatically from a reservoir, the reservoir pressure is 30 bar; its velocity is negligible and its temperature is 70 F. What are the temperature, velocity, pressure and density of the helium at the point where its speed is twice the speed of sound? Khelium-cp/cv =1.667, MW= 4 g/mol. Q2: Air flows isentropically from a reservoir through a nozzle; PR = 60 psia, and TR= 100 F. At some point in the nozzle where the Mach number = 0.6, what are the pressure, temperature, and velocity at that point? K= Cp/Cv = 1.4, MW = 29 g/mol. Q3: A pump is pumping 50 gal/ min of water from a pressure of 30 psiato a pressure of 100 psia. The changes in elevation and velocity are negligible. The motor that drives the pump supplies 2.8 hp. What is the efficiency of the pump?

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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Q1: Helium flows steadily and adiabatically from a reservoir, the reservoir pressure is 30 bar; its velocity is negligible and its temperature is 70 F. What are the temperature, velocity, pressure and density of the helium at the point where its speed is twice the speed of sound? Khelium-cp/cv = 1.667, MW= 4 g/mol. Q2: Air flows isentropically from a reservoir through a nozzle; PR = 60 psia, and TR= 100 F. At some point in the nozzle where the Mach number = 0.6, what are the pressure, temperature, and velocity at that point? K= Cp/Cv = 1.4, MW = 29 g/mol. Q3: A pump is pumping 50 gal / min of water from a pressure of 30 psiato a pressure of 100 psia. The changes in elevation and velocity are negligible. The motor that drives the pump supplies 2.8 hp. What is the efficiency of the pump?
Transcribed Image Text:Q1: Helium flows steadily and adiabatically from a reservoir, the reservoir pressure is 30 bar; its velocity is negligible and its temperature is 70 F. What are the temperature, velocity, pressure and density of the helium at the point where its speed is twice the speed of sound? Khelium-cp/cv = 1.667, MW= 4 g/mol. Q2: Air flows isentropically from a reservoir through a nozzle; PR = 60 psia, and TR= 100 F. At some point in the nozzle where the Mach number = 0.6, what are the pressure, temperature, and velocity at that point? K= Cp/Cv = 1.4, MW = 29 g/mol. Q3: A pump is pumping 50 gal / min of water from a pressure of 30 psiato a pressure of 100 psia. The changes in elevation and velocity are negligible. The motor that drives the pump supplies 2.8 hp. What is the efficiency of the pump?
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