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. The temperature corresponding to the point ' K ' is :

Question

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 : (A) -373° C (B) -40° C (C) -100° C (D) -273° C

Tardigrade Admin · Accepted Answer

For isochoric process ( P / T )= n ( R / V )= text constan t P =( nR / V )( t +273) If P =0 ⇒ t =-273° C

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.

The temperature corresponding to the point ' $K$ ' is :

$- 37 3^{\circ} C$

$- 4 0^{\circ} C$

$- 10 0^{\circ} C$

$- 27 3^{\circ} C$

For isochoric process
$\frac{P}{T} = n \frac{R}{V} = constan t$
$P = \frac{n R}{V} (t + 273)$
If $P = 0 \Rightarrow t = - 27 3^{\circ} C$

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. The temperature corresponding to the point ' K ' is :

−373∘C

−40∘C

−100∘C

−273∘C