The rate of diffusion of methane at a given temperature is twice that of gas X. The molecular weight of X is 

(1) 64.0

(2) 32.0

(3) 4.0

(4) 8.0

Subtopic:  Graham's Law |
 71%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Density ratio of O2 and H2 is 16 : 1. The ratio of their r.m.s. velocities will be- 

1. 4 : 1

2. 1 : 16

3. 1 : 4

4. 16 : 1

Subtopic:  Graham's Law |
 77%
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The rate of diffusion of a gas having molecular weight just double of nitrogen gas is 56 mls–1. The rate of diffusion of nitrogen will be

(1) 79.19 ml s–1

(2) 112.0 ml s–1

(3) 56 ml s–1

(4) 90.0 ml s–1

Subtopic:  Graham's Law |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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50 ml of gas A diffuse through a membrane in the same time as 40 ml of a gas B under identical pressure-temperature conditions. If the molecular weight of A is 64, that of B would be [CBSE PMT 1992]

(1) 100

(2) 250

(3) 200

(4) 80

Subtopic:  Graham's Law |
 75%
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The kinetic energy for 14 grams of nitrogen gas at 127°C is nearly (mol. mass of nitrogen = 28 and gas constant = 8.31JK–1mol–1) 

(1) 1.0 J

(2) 4.15 J

(3) 2493 J

(4) 3.3 J

Subtopic:  Kinetic Theory of Gas |
 75%
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The rms velocity of CO2 at a temperature T (in kelvin) is x cms–1. At what temperature (in kelvin) the rms velocity of nitrous oxide would be 4x cms–1

(1) 16 T

(2) 2 T

(3) 4 T

(4) 32 T

Subtopic:  Molecular Velocity |
 71%
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The rms velocity of an ideal gas at 27°C is 0.3 ms–1. Its rms velocity at 927°C (in ms–1) is [IIT 1996; EAMCET 1991]

(1) 3.0

(2) 2.4

(3) 0.9

(4) 0.6

Subtopic:  Molecular Velocity |
 75%
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NEET 2023 - Target Batch - Aryan Raj Singh
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The rms velocity of hydrogen is 7times the rms velocity of nitrogen. If T is the temperature of the gas [IIT 2000]

(1) T(H2)=T(N2)

(2) T(H2)>T(N2)

(3) T(H2)<T(N2)

(4) T(H2)=7T(N2)

Subtopic:  Molecular Velocity |
 59%
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If the average velocity of N2 molecules is 0.3 m/s at 27°C, then the velocity of 0.6 m/s will take place at 

(1) 273 K

(2) 927 K

(3) 1000 K

(4) 1200 K

Subtopic:  Kinetic Theory of Gas |
 74%
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The temperature of an ideal gas is reduced from 927°C to 27°C. The rms velocity of the molecules becomes

(1) Double the initial value

(2) Half of the initial value

(3) Four times the initial value

(4) Ten times the initial value

Subtopic:  Molecular Velocity |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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