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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3rg218

For nitrogen at , and . At a molar volume of (i.e. ), which statements are correct?

  1. AThe term contributes to
  2. BThe term contributes to
  3. C is greater than 1 at this molar volume
  4. DThe second virial term alone would predict less than 1

Answer: A, B, C, D

(A true). (B true). , above 1 (C true). Using only , , below 1 (D true). At high density the third virial term dominates.
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