JEE Main 2023 (Online) 10th April Morning Shift | Heat and Thermodynamics Question 51 | Physics

Consider two containers A and B containing monoatomic gases at the same Pressure (P), Volume (V) and Temperature (T). The gas in A is compressed isothermally to $$\frac{1}{8}$$ of its original volume while the gas in B is compressed adiabatically to $$\frac{1}{8}$$ of its original volume. The ratio of final pressure of gas in B to that of gas in A is

$$\frac{1}{8}$$

8$$^\frac{3}{2}$$

JEE Main 2023 (Online) 10th April Morning Shift

MCQ (Single Correct Answer)

-1

Match List I with List II :

	List I		List II
(A)	3 Translational degrees of freedom	(I)	Monoatomic gases
(B)	3 Translational, 2 rotational degrees of freedoms	(II)	Polyatomic gases
(C)	3 Translational, 2 rotational and 1 vibrational degrees of freedom	(III)	Rigid diatomic gases
(D)	3 Translational, 3 rotational and more than one vibrational degrees of freedom	(IV)	Nonrigid diatomic gases

Choose the correct answer from the options given below:

(A)-(I), (B)-(III), (C)-(IV), (D)-(II)

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

(A)-(IV), (B)-(II), (C)-(I), (D)-(III)

(A)-(I), (B)-(IV), (C)-(III), (D)-(II)

JEE Main 2023 (Online) 8th April Evening Shift

MCQ (Single Correct Answer)

-1

The temperature at which the kinetic energy of oxygen molecules becomes double than its value at $$27^{\circ} \mathrm{C}$$ is

$$627^{\circ} \mathrm{C}$$

$$927^{\circ} \mathrm{C}$$

$$327^{\circ} \mathrm{C}$$

$$1227^{\circ} \mathrm{C}$$

JEE Main 2023 (Online) 8th April Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

Work done by a Carnot engine operating between temperatures $$127^{\circ} \mathrm{C}$$ and $$27^{\circ} \mathrm{C}$$ is $$2 \mathrm{~kJ}$$. The amount of heat transferred to the engine by the reservoir is :

8 kJ

2 kJ

4 kJ

2.67 kJ

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