Air at 0.50 m and 101 kPaa is compressed isothermally to 200 kPag. Find its final volume. . Find the work needed to isothermally compressed from 13 psia at 10 ft³ 35 psia. 0.167 m3 -24.14 Btu . Find the change of enthalpy needed to isothermally compressed from 100 kPa to 500 kPa. Find the change of entropy needed to isothermally compressed 4 kg of air from 103 kPa to 300 kPa. . A piston-cylinder containing air receives heat at a constant temperature of 500 K and an initial pressure 200 kPa. The initial volume is 0.01 m³ and the final volume is 0.07 m3. Determine the work. -1.23 kJ/K 3.89 kJ

Elements Of Electromagnetics
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1. Air at 0.50 m³ and 101 kPaa is compressed isothermally to 200 kPag. Find its final
volume.
0.167 m3
2. Find the work needed to isothermally compressed from 13 psia at 10 ft° 35 psia.
-24.14 Btu
3. Find the change of enthalpy needed to isothermally compressed from 100 kPa to
500 kPa.
4. Find the change of entropy needed to isothermally compressed 4 kg of air from 103
kPa to 300 kPa.
5. A piston-cylinder containing air receives heat at a constant temperature of 500 K
and an initial pressure 200 kPa. The initial volume is 0.01 m3 and the final volume
is 0.07 m3. Determine the work.
-1.23 kJ/K
3.89 kJ
Transcribed Image Text:1. Air at 0.50 m³ and 101 kPaa is compressed isothermally to 200 kPag. Find its final volume. 0.167 m3 2. Find the work needed to isothermally compressed from 13 psia at 10 ft° 35 psia. -24.14 Btu 3. Find the change of enthalpy needed to isothermally compressed from 100 kPa to 500 kPa. 4. Find the change of entropy needed to isothermally compressed 4 kg of air from 103 kPa to 300 kPa. 5. A piston-cylinder containing air receives heat at a constant temperature of 500 K and an initial pressure 200 kPa. The initial volume is 0.01 m3 and the final volume is 0.07 m3. Determine the work. -1.23 kJ/K 3.89 kJ
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