1
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A gas mixture consists of 2 moles of oxygen and 4 moles of neon at temperature T. Neglecting all vibrational modes, the total internal energy of the system will be,

A
4RT
B
16RT
C
8RT
D
11RT
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A gas is compressed adiabatically, which one of the following statement is NOT true.

A
There is no heat supplied to the system
B
The temperature of the gas increases.
C
There is no change in the internal energy
D
The change in the internal energy is equal to the work done on the gas.
3
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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

A
$$\frac{1}{8}$$
B
8$$^\frac{3}{2}$$
C
4
D
8
4
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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