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JEE Main201910 Apr 2019Morning ShiftChemistryStates of MatterActual

Consider the following table: Gas a / k P a d m 6 m o l - 1 b / d m 3 m o l - 1 A 642.32 0.05196 B 155.21 0.04136 C 431.91 0.05196 D 155.21 0.4382 a and b are vander Waals constants. The correct statement about the gases is:

Options

  1. AGas C will occupy more volume than gas A ; gas B will be lesser compressible than gas D
  2. BGas C will occupy lesser volume than gas A ; gas B will be lesser compressible than gas D
  3. CGas C will occupy more volume than gas A ; gas B will be more compressible than gas D
  4. DGas C will occupy lesser volume than gas A ; gas B will be more compressible than gas D

Correct answer

C. Gas C will occupy more volume than gas A ; gas B will be more compressible than gas D

Step-by-step solution

* Gas A and C have same value of ‘b’ but different value of a so gas having higher value of a have more force of attraction so molecules will be more closer hence occupy less volume. * Gas B and D have same value of ‘a’ but different value of b so gas having lesser value of b will be more compressible.

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