An ideal gas expands in such a way that PV^2 = constant throughou… - Vidyadip

MCQ

An ideal gas expands in such a way that $PV^2 =$ constant throughout the process.

A
The graph of the process of $T-V$ diagram is a parabola.
B
The graph of the process of $T-V$ diagram is a straight line.
C
Such an expansion is possible only with heating.
✓
Such an expansion is possible only with cooling.

✓

Answer

Correct option: D.

Such an expansion is possible only with cooling.

d
From ideal gas equation, $PV =nRT$

$\Rightarrow \mathrm{VT}=\mathrm{constant}$

$\Rightarrow \mathrm{V}$ is inversely proportional to $\mathrm{T}$

$\Rightarrow$ expansion causes increase in $\mathrm{V}$

$\Rightarrow$ it leads to decrease in $T$

$\Rightarrow$ gas is cooled

So correct option is $d$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 11. thermodynamics→11. thermodynamics — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In the system shown in the figure, the acceleration of the $1\,\,kg$ mass and the tension in the string connecting between $A$ and $B$ is

A sound source emits sound waves in a uniform medium. If energy density is $E$ and maximum speed of the particles of the medium is ${v_{\max }}.$The plot between $E$ and ${v_{\max }}$ is best represented by

In thermal equilibrium, the average velocity of gas molecules is

A ball rolls off the top of a stairway with horizontal velocity $\mathrm{u}$. The steps are $0.1 \mathrm{~m}$ high and $0.1 \mathrm{~m}$ wide. The minimum velocity $\mathrm{u}$ with which that ball just hits the step $5$ of the stairway will be $\sqrt{\mathrm{x}} \mathrm{ms}^{-1}$ where $\mathrm{x}=$___________ [use $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ ].

Which of the following statements is true for the planets orbiting around the sun ?

Water droplets are coming from an open tap at particular rate. The spacing between a droplet observed at $4^{{th}}\;second$ after its fall to the next droplet is $34.3 \,{m}$. At what rate the droplets are coming from the tap ? (Take $g=9.8\, {m} / {s}^{2}$)

The correct value of $0°C$ on Kelvin scale will be ........ $K$

A boy ties a stone of mass $100 \,g$ to the end of a $2$ $m$ long string and whirls it around in a horizontal plane. The string can withstand the maximum tension of $80 \,N$. If the maximum speed with which the stone can revolve is $\frac{ K }{\pi} rev$. / $min$. The value of $K$ is (Assume the string is massless and unstretchable)

A point object is placed at a distance of 30cm from a convex mirror of focal length 30cm. The image will form at:

A body moves with velocity $v = ln x\ m/s$ where $x$ is its position. The net force acting on body is zero at