A gaseous mixture was prepared by taking equal moles of CO and N2. If the total pressure of the mixture was found to be 1 atmosphere, then the partial pressure of the nitrogen (N2) in the mixture is:

1.  0.8 atm
2.  0.9 atm
3.  1 atm
4.  0.5 atm

Subtopic:  Dalton's Law |
 83%
From NCERT
AIPMT - 2011
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Two gases A and B having the same volume diffuse through a porous partition in 20 and 10 second respectively. The molecular mass of A is 49 u. Molecular mass of B will be:

1.  12.25 U

2.  6.50 U

3.  25.00 U

4.  50.00 U

Subtopic:  Graham's Law |
 81%
AIPMT - 2011
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By what factor does the average velocity of a gaseous molecule increase when the temperature (in Kelvin) is doubled?

1.  2.8
2.  4.0
3.  1.4
4.  2.0

Subtopic:  Molecular Velocity |
 73%
AIPMT - 2011
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The energy absorbed by each molecule (A2) of a substance is 4.4 x 10-19 J and bond energy per molecule is 4.0 x 10-19 J. The kinetic energy of the molecule per atom will be:

1. 2.0×10-20 J

2. 2.2×10-19 J

3. 2.0×10-19 J

4. 4.0×10-20 J

Subtopic:  Kinetic Theory of Gas |
AIPMT - 2009
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A gas at 350 K and 15 bar has a molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is:

1. Z<1 and repulsive forces are dominant.
2. Z>1 and attractive forces are dominant.
3. Z>1 and repulsive forces are dominant.
4. Z<1 and attractive forces are dominant.

Subtopic:  Compressibility Factor |
 58%
From NCERT
NEET - 2019
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40 milligram diatomic volatile substance X2 is converted to vapour that displaced 4.92 mL of air at 1 atm and 300 K. Atomic weight of element X is nearly:

1.  400

2.  240

3.  200

4.  100

Subtopic:  Ideal Gas Law |
From NCERT
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A certain sample of gas has a volume of 0.2 litre measured at 1 atm pressure and 0°C. At the same pressure but at
273°C, its volume will be:

1.  0.4 litre

2.  0.8 litre

3.  27.8 litre

4.  55.6 litre

Subtopic:  Gas Laws |
 84%
From NCERT
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Which is the correct curve for Charle's law, when the curve is plotted at 0.821 atm pressure for a 10-mole ideal gas?

1.  

 

2.  

3.  

 

4.  

 

Subtopic:  Gas Laws |
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Which is not correct curve for gay-lusacc's law?

1 .  

2.     

3.   

4.     

 

Subtopic:  Gas Laws |
 69%
From NCERT
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A certain hydrate has the formula MgSO4. xH2O. A quantity of 54.2 g of the compound is heated in an oven to drive off the water. If the water vapour generated exerts a pressure of 24.8 atm in a 2.0 L container at 120°C, the value of x is-

1.  2

2.  5

3.  6

4.  7

Subtopic:  Ideal Gas Law |
From NCERT
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