Q. For a real gas, at very high pressure, the compressibility factor Z is usually:
एक वास्तविक गैस के लिए, बहुत उच्च दबाव पर, संपीड्यता कारक Z आमतौर पर होता है:
Explanation
At very high pressure, the compressibility factor Z > 1 for real gases.
Definition: Z = PV/(nRT)
At high pressure:
- Molecules are forced very close together
- Repulsive forces dominate over attractive forces
- Molecular volume becomes significant
- Gas is less compressible than ideal
Physical interpretation:
- Z > 1: Gas occupies more volume than predicted by ideal law
- Repulsive forces prevent complete compression
- van der Waals 'b' term becomes important
Pressure effects:
- Low P: Z < 1 (attractive forces dominate)
- Intermediate P: Z ≈ 1 (ideal behavior)
- High P: Z > 1 (repulsive forces dominate)
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