Maxwell's velocity distribution curve is given for two different temperature. For the given curves.

(1) ${T}_{1}>{T}_{2}$

(2) ${T}_{1}<{T}_{2}$

(3) ${T}_{1}\le {T}_{2}$

(4) ${T}_{1}={T}_{2}$

Concept Questions :-

Maxwell distribution curve
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The mass of 1 liter of He under a pressure 2 atmosphere and temperature  is:

1.  0.16 g

2.  0.32 g

3.  0.48 g

5.  0.64 g

Concept Questions :-

Ideal gas
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${\mathrm{n}}_{1}$ mole of monoatomic gas is mixed with ${\mathrm{n}}_{2}$ mole of diatomic gas such that ${\gamma }_{mix}=1.5$

(1) ${\mathrm{n}}_{1}=2{\mathrm{n}}_{2}$

(2) ${\mathrm{n}}_{2}=2{\mathrm{n}}_{1}$

(3) ${n}_{1}={n}_{2}$

(4) ${n}_{1}=3{n}_{2}$

Concept Questions :-

Specific heat
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Difficulty Level:

1.

2.

3.

4.  None of these

Concept Questions :-

Specific heat
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Two chambers containin m1g and m2g of a gas at pressure P1 and P2 respectively are put in contact with each other. If temperature remains constant, the common pressure reached will be

1.

2.

3.

4.

Concept Questions :-

Ideal gas
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If P is the pressure of the gas then the KE per unit volume of the gas is:

1.

2.

3.

4.

Concept Questions :-

Kinetic energy of gas
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The root mean square speed of oxygen molecules (O2) at a certain absolute temperature is v. If the temperature is doubled and oxygen gas dissociates into oxygen atom, the rms speed would be :

1.

2.

3.

4.  $2\sqrt{2}\mathrm{v}$

Concept Questions :-

Types of velocity
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A rocket is propelled by a gas which is initially at a temperature of 4000 K. The temperature of the gas falls to 1000 K as it leaves the exhaust nozzle. The gas which will acquire the largest momentum while leaving the nozzle is:

(1) Hydrogen

(2) Helium

(3) Nitrogen

(4) Argon

Concept Questions :-

Types of velocity
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Mean kinetic energy per degree of freedom of gas molecules is: [ MP PET 1995; RPET 1999, 2001, 03; Haryana CEET 2000; DCE 2009]

(1) $\frac{3}{2}kT$             (2) kT             (3) $\frac{1}{2}kT$             (4) $\frac{3}{2}RT$

Concept Questions :-

Law of equipartition of energy
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What is the mass of 2 liters of nitrogen at 22.4 atmospheric pressure and 273 K?

(1) 28 g               (2) 14$×22.4$ g

(3) 56 g               (4) None of these

Concept Questions :-

Ideal gas
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