Calculate the actual work done on the 200 g mass using W = mgh. Be careful to use only the change in height of the mass. How does this compare to the work done by the gas from step C? Does the gas do any work other than lifting the 200 g mass?
Calculate the actual work done on the 200 g mass using W = mgh. Be careful to use only the change in height of the mass. How does this compare to the work done by the gas from step C? Does the gas do any work other than lifting the 200 g mass?
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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Question
Calculate the actual work done on the 200 g mass using W = mgh. Be careful to use only the change in height of the mass. How does this compare to the work done by the gas from step C? Does the gas do any work other than lifting the 200 g mass? (The picture contains the data).
Transcribed Image Text:AIR CALCULATIONS
Radius, m
Length, m
Volume air, m
Can
0.0235
0.11
0.000191
EXPERIMENT
Radius of piston (m) = 0.01625
COMPUTED DATA
GATHERED DATA
Temperature,
K
Height of
piston, m
Position
Pressure,
Vol of air
Total
Moles of air
Ра
inside the
volume of
present, mol
piston, m'
air, m
A Prep
102025
282.15
0.033
0.000027
0.000218
0.009481
B
104400
282.15
0.025
0.000021
0.000212
0.009435
C
104344
361.15
0.055
0.000046
0.000237
0.008236
D
102046
361.15
0.064
0.000053
0.000244
0.008293
A End
of cycle
102025
282.15
0.033
0.000027
0.000218
0.009481
Run1
Run 1
2124
104400 00
RRun
237E4
10434400
244E4
102046.00
21E4
10200s.00
eeo o ooo s
Stan c000 000
Periodie
Figure 1. Pressure vs. Total Air Volume Diagram of the Heat Engine from SparkVue.
Transcribed Image Text:Area enclosed in the graph = 0.59467
Steps
A to B
B to C
C to D
Expansion or Compression
compression
expansion
expansion
compression
Isobaric or Isothermic
isothermic
isobaric
isothermic
isobaric
D to A
WORK CALCULATIONS
Work (J)
Efficiency (%).
Thermodynamic
Mechanical
0.59467 J
3.01%
0.0588 J
0.3%
Heat added from C-D, Qcd (J) = 0.7248J
Heat added from B-C, Qbc (J) = 19.0631J
Total Heat Added QH = 19.0631J
Thermodynamic Efficiency (%)= 3.01%
Useful work Energy Efficiency =0.3%
Carnot (Ideal) Efficiency = 21.87%
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