The critical volume of 02 is _ cm3/ mol.
Correct answer: C. 74.42g/dm3
- A. 95.56g/dm3
- B. 64.51 g/dm3
- C. 74.42g/dm3
- D. 99.9 g/dm3
Explanation
The critical volume of oxygen 74.42 cm3/mol. So the correct answer is C.
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About Real and Ideal Gases
An ideal gas is modelled as particles with negligible volume and no intermolecular attraction, obeying Boyle's, Charles's and Avogadro's laws through PV = nRT. Real gases deviate from this behaviour, especially at high pressure and low temperature, because particle volume and attractive forces matter; the van der Waals equation explains these corrections.
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When sudden expansion of gases takes place, cooling occurs. This is called _.
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