Isotherms of carbon dioxide at various temperatures are represented in Fig. 5.5. Answer the following questions based on this figure.

i. In which state will CO₂ exist between the points a and b at temperature T₁?

ii. At what point will CO₂ start liquefying when temperature is T₁?

iii. At what point will CO₂ be completely liquefied when temperature is  T₂?

iv. Will condensation take place when the temperature is T₃.

v. What portion of the isotherm at T₁ represents liquid and gaseous CO₂ at equilibrium? 

<p><span data-teams="true">This is a long answer type question as classified in NCERT Exemplar</span></p><p><strong>i. </strong>CO₂ will exist in a gaseous state between the points a and b at temperature T₁.&nbsp;</p><p><strong>ii.</strong> At point b, CO₂ will start liquefying when temperature is T₁</p><p><strong>iii.</strong> At point g, &nbsp; CO₂ will be completely liquefied when temperature is&nbsp; T₂</p><p><strong>iv.</strong> No, the condensation will not take place&nbsp; when the temperature is T₃ because T₃ &gt; T_c.</p><p><strong>v.</strong> Between&nbsp; b and c of the isotherm at T₁, represents the liquid and <strong>&nbsp;</strong>gaseous CO₂ at equilibrium.</p>

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