What will be the molecular diameter of Helium if van der Waal's constant, b = 24 ml mole-1 ?
Correct answer: A. 2.71 A
- A. 2.71 A
- B. 2.71 nm
- C. 5.42 A0
- D. 542 A0
Explanation
According to the following solution this correct answer is 2.71Ao.
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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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