By what percentage, should the pressure of a given mass of gas be increased, so as to decrease its volume by 10% at a constant temperature?

1. 5%     

2. 7.2 %       

3. 12.5%         

4. 11.1%

Subtopic:  Ideal Gas Equation |
 75%
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In the adjacent V-T diagram what is the relation between P1 and P2 ?


1. P2=P1                               

2. P2>P1

3. P2<P1                                 

4. cannot be predicated

 

Subtopic:  Ideal Gas Equation |
 77%
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Which one of the following graph is correct at constant pressure?

1. 2.
3. 4.
Subtopic:  Ideal Gas Equation |
 62%
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The root-mean-square velocity of the molecules in a sample of helium is 57th of that of the molecules in a sample of hydrogen.  If the temperature of the hydrogen gas is 0°C, that of the helium sample is about:

1. 0°C       

2. 5.6°C      

3. 273°C         

4. 100°C

Subtopic:  Types of Velocities |
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The kinetic energy of one gram molecule of a gas at standard temperature and pressure is: (R = 8.31 J/mol-K)

 

1. 0.56 ×104 J             

2. 1.3×102 J

3. 2.7×102 J                 

4. 3.4×103 J

Subtopic:  Kinetic Energy of an Ideal Gas |
 59%
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PMT - 1997
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Gases exert pressure on the walls of containing vessel because  the gas molecules:

1. Possess momentum

2. collide with each other

3. have finite volume

4. obey gas laws

Subtopic:  Kinetic Energy of an Ideal Gas |
 51%
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The equation of state for 5 g of oxygen at a pressure P and temperature T, when occupying a volume V, will be: (where R is the constant)

1. PV = 5RT

2. PV = 52RT

3. PV = 516RT

4. PV = 532RT

Subtopic:  Ideal Gas Equation |
 82%
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The equation p+av2v-b=RT is known as:

1. Perfect gas equation

2. Joule Thomson's equation

3. Vander Waal's equation

4. Maxwell's equation

Subtopic:  Ideal Gas Equation |
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The temperature of an ideal gas is increased from 27° to 927°C. The r.m.s. speed of its molecules becomes-

1. twice           

2. half           

3. four times         

4. one fourth

Subtopic:  Types of Velocities |
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An ideal gas is filled in a vessel, then

1. If it is placed inside a moving train, its temperature increases

2. Its centre of mass moves randomly

3. Its temperature remains constant in a moving car

4. None of these

Subtopic:  Kinetic Energy of an Ideal Gas |
 68%
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