The graph below shows the pressure and volume for a sample of dry air carried out at two different constant temperatures. C 2.5 2

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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The graph below shows the pressure and volume for a sample of dry air carried out at
two different constant temperatures.
Volume (x 10-³ m ³)
2.5
N
1.5
1
0.5
0
50
M
100
150
Pressure (k Pa)
200
250
-T= 300 K
-T200 K
An isothermal change has to be carried out very slowly. Explain why this is the case.
Use data from the graph and the ideal gas equation to calculate the number of moles
of gas in the sample.
Transcribed Image Text:The graph below shows the pressure and volume for a sample of dry air carried out at two different constant temperatures. Volume (x 10-³ m ³) 2.5 N 1.5 1 0.5 0 50 M 100 150 Pressure (k Pa) 200 250 -T= 300 K -T200 K An isothermal change has to be carried out very slowly. Explain why this is the case. Use data from the graph and the ideal gas equation to calculate the number of moles of gas in the sample.
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