JEE Main 2023 (Online) 10th April Evening Shift | Heat and Thermodynamics Question 145 | Physics

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,

4RT

16RT

8RT

11RT

JEE Main 2023 (Online) 10th April Evening Shift

MCQ (Single Correct Answer)

-1

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

There is no heat supplied to the system

The temperature of the gas increases.

There is no change in the internal energy

The change in the internal energy is equal to the work done on the gas.

JEE Main 2023 (Online) 10th April Morning Shift

MCQ (Single Correct Answer)

-1

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