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NTA Abhyas JEE Main2020ChemistryStates of MatterPractice

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

Options

  1. AH 2 < N 2 < CH 4 < CO 2
  2. BCO 2 &#x2004; &#x003C; &#x2004; CH 4 &#x2004; &#x003C; &#x2004; N 2 &#x2004; &#x003C; &#x2004; H 2
  3. CH 2 &#x2004; &#x003C; &#x2004; CH 4 &#x2004; &#x003C; &#x2004; N 2 &#x2004; &#x003C; &#x2004; CO 2
  4. DCH 4 &#x2004; &#x003C; &#x2004; H 2 &#x2004; &#x003C; &#x2004; N 2 &#x2004; &#x003C; &#x2004; CO 2

Correct answer

A. H 2 < N 2 < CH 4 < CO 2

Step-by-step solution

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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