ft lb4. For a certain ideal gas, R = 77.8lb RBtuand Cp = (0.2 + 0.0002T)It is%3Dlb Rheated from 40 °F to 140 °F . For 1 lb mass, find:a. change of internal energy ( answer: 21 Btu )b. change of enthalpy ( answer: 31 Btu )

Given data: R = 77.8 ft lb/ lb R Cp = (0.2 + 0.0002T) Btu/ lb R…

ft lb lb R Btu 4. For a certain ideal gas, R = 77.8 and Cp = (0.2 + 0.0002T) lb R It is heated from 40 °F to 140 °F . For 1 lb mass, find: a. change of internal energy ( answer: 21 Btu ) b. change of enthalpy ( answer: 31 Btu )

ft lb lb R Btu 4. For a certain ideal gas, R = 77.8 and Cp = (0.2 + 0.0002T) lb R It is heated from 40 °F to 140 °F . For 1 lb mass, find: a. change of internal energy ( answer: 21 Btu ) b. change of enthalpy ( answer: 31 Btu )

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.

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Concept explainers

Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

Question

ft lb
4. For a certain ideal gas, R = 77.8
lb R
Btu
and Cp = (0.2 + 0.0002T)
It is
%3D
lb R
heated from 40 °F to 140 °F . For 1 lb mass, find:
a. change of internal energy ( answer: 21 Btu )
b. change of enthalpy ( answer: 31 Btu )

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For a certain ideal gas, R = 77.8 t t and Cp = (0.2 + 0.0002T) Btu It is lb R lb R heated from 40 °F to 140 °F . For 1 lb mass, find: a. change of internal energy ( answer: 21 Btu ) b. change of enthalpy ( answer: 31 Btu )
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