1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider the following table: Gas a/(k Pa dm6 mol-1) b/(dm3 mol-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 constant. The correct statement about the gases is :

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Q. Consider the following table :
Gas $a/(k \; Pa \; dm^6 \; mol^{-1})$ $b/(dm^3 \; mol^{-1})$
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 constant. The correct statement about the gases is :

JEE MainJEE Main 2019States of Matter

Solution:

$\bullet$ 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.
$\bullet$ 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.
so option (3) is correct.