1
JEE Main 2023 (Online) 1st February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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.

JEE Main 2023 (Online) 1st February Evening Shift Physics - Heat and Thermodynamics Question 148 English

The temperature corresponding to the point '$$\mathrm{K}$$' is :

A
$$-273^{\circ} \mathrm{C}$$
B
$$-373^{\circ} \mathrm{C}$$
C
$$-100^{\circ} \mathrm{C}$$
D
$$-40^{\circ} \mathrm{C}$$
2
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A sample of gas at temperature $$T$$ is adiabatically expanded to double its volume. The work done by the gas in the process is $$\left(\mathrm{given}, \gamma=\frac{3}{2}\right)$$ :

A
$$W=T R[\sqrt{2}-2]$$
B
$$W=\frac{T}{R}[\sqrt{2}-2]$$
C
$$W=\frac{R}{T}[2-\sqrt{2}]$$
D
$$W=R T[2-\sqrt{2}]$$
3
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

$$\left(P+\frac{a}{V^{2}}\right)(V-b)=R T$$ represents the equation of state of some gases. Where $$P$$ is the pressure, $$V$$ is the volume, $$T$$ is the temperature and $$a, b, R$$ are the constants. The physical quantity, which has dimensional formula as that of $$\frac{b^{2}}{a}$$, will be:

A
Energy density
B
Bulk modulus
C
Modulus of rigidity
D
Compressibility
4
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The average kinetic energy of a molecule of the gas is

A
proportional to volume
B
dependent on the nature of the gas
C
proportional to absolute temperature
D
proportional to pressure
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