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  4. The figure given below shows the variation of vapour pressure of different liquids with temperature. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/472d2a19c8f0f6efead551f9f4a66dec-.png /> At high altitude, atmospheric pressure is low (say 60 mm Hg ). At what temperature does liquid CCl 4 boils?

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Q. The figure given below shows the variation of vapour pressure of different liquids with temperature.
image
At high altitude, atmospheric pressure is low (say $60 \,mm \,Hg$ ). At what temperature does liquid $CCl _{4}$ boils?

States of Matter

Solution:

When atmospheric pressure decreases to $60\, mm$ of $Hg$, liquid boils below the boiling temperature.
According to the graph, $CCl _{4}$ boils at $349\, K$, when atmospheric pressure approaches $760 \, mm$ of $Hg$.
At $60\, mm$ of $Hg , CCl _{4}$ boils at temperature $\approx 281\, K$.