A perfectly insulated system contains 2 ft3 of hydrogen at 75 F and 90 psia, which receives an input of paddle work at constant pressure until the temperature is 150 F. Determine the heat in BTU. Note: Cp 3.419. BTU lb-R 9 = 2.434 BTR, R = 766.54 ft-lb lb-R' lb-R

A perfectly insulated system contains 2 ft3 of hydrogen at 75 F and 90 psia, which receives an input of paddle work at constant pressure until the temperature is 150 F. Determine the heat in BTU. Note: Cp 3.419. BTU lb-R 9 = 2.434 BTR, R = 766.54 ft-lb lb-R' lb-R

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

100%

A perfectly insulated system contains 2 ft3 of hydrogen at 75 F and 90
psia, which receives an input of paddle work at constant pressure until the
temperature is 150 F. Determine the heat in BTU.
Note: Cp = 3.419
3.419 B, C =
BTU
C₂ =
16.26
2.434 -R
BTU, R = 766.54
lb-R'
ft-lb
lb-R
Ans: between 16.15-16.26
2.434
lb-R
35

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