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. [2023]

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Solution

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: [2023]

1 −273°C

2 −100°C

3 −373°C

4 −40°C

Ans.
(1)

$For isochoric process,$

$\frac{P}{T} = n \frac{R}{V} = constant$

$P = \frac{n R}{V} (t + 273)$

$If P = 0 \Rightarrow t = - 273 ° C$

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