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  4. For three low density gases A , B , C pressure versus temperature graphs are plotted while keeping them at constant volume, as shown in the figure. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/467a26aa6cbaf33c2739babfe253e6ca-.png /> The temperature corresponding to the point ' K ' is :

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Q. For three low density gases $A , B , C$ pressure versus temperature graphs are plotted while keeping them at constant volume, as shown in the figure.
image
The temperature corresponding to the point ' $K$ ' is :

JEE MainJEE Main 2023Kinetic Theory

Solution:

For isochoric process
$\frac{ P }{ T }= n \frac{ R }{ V }=\text { constan } t$
$P =\frac{ nR }{ V }( t +273)$
If $P =0 \Rightarrow t =-273^{\circ} C$