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Question: Answered & Verified by Expert
Consider the graph between compressibility factor Z and pressure P :



The correct increasing order of ease of liquefaction of the gases shown in the above graph is
ChemistryStates of MatterJEE Main
Options:
  • A H 2  <  N 2  <  CH 4  <  CO 2
  • B CO 2  <  CH 4  <  N 2  <  H 2
  • C H 2  <  CH 4  <  N 2  <  CO 2
  • D CH 4  <  H 2  <  N 2  <  CO 2
Solution:
1100 Upvotes Verified Answer
The correct answer is: H 2  <  N 2  <  CH 4  <  CO 2
Z<1 means, force of attraction dominating i.e., a is considerable, b can be negligible at low temperature and low pressure and liquification is more.

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