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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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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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Hints

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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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

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
Hints

Equal moles of hydrogen and oxygen gases are placed in container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?

1. 1/4         

2. 3/8         

3. 1/2           

4. 1/8

Subtopic:  Graham's Law |
 53%
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

A gas such as carbon monoxide would be most likely to obey the ideal gas law at-

1. High temperature and low pressure

2. Low temperature and high pressure

3. High temperature and high pressure

4. Low temperature and low pressure

Subtopic:  Kinetic Theory of Gas |
 79%
From NCERT
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Equal masses of H2, O2 and methane have been taken in a container of volume V at temperature 27°C in identical conditions. The ratio of the volumes of gases H2: O2 : CH4 would be-

1. 8:16:1

2. 16:8:1

3. 16:1:2

4. 8:1:2

Subtopic:  Ideal Gas Law |
 67%
From NCERT
NEET - 2014
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NEET 2023 - Target Batch - Aryan Raj Singh
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Links
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NEET 2023 - Target Batch - Aryan Raj Singh