If an ideal gas has volume V at 27°C and it is heated at a constant pressure so that its volume becomes 1.5V. Then the value of final temperature will be

1. 600°C                             

2. 177°C

3. 817°C                             

4. None of these

Subtopic:  Ideal Gas Equation |
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In Boyle's law what remains constant :

1. PV                                     

2. TV

3. VT                                     

4. PT

Subtopic:  Ideal Gas Equation |
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Equation of gas in terms of pressure (P), absolute temperature (T) and density (d) is :

1. P1T1d1=P2T2d2                                 

2. P1T1d1=P2T2d2

3. P1d2T1=P2d1T1                                 

4. P1d1T1=P2d2T2

Subtopic:  Ideal Gas Equation |
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The respective speeds of the molecules are 1, 2, 3, 4 and 5 km/sec. The ratio of their r.m.s. velocity and the average velocity will be

1. 11 : 3                                   

2. 3 : 11

3. 1 : 2                                         

4. 3 : 4

Subtopic:  Types of Velocities |
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Two vessels having equal volume contain molecular hydrogen at one atmosphere and helium at two atmospheres respectively. If both samples are at the same temperature, the mean velocity of hydrogen molecules is

1. Equal to that of helium                           

2. Twice that of helium

3. Half that of helium                                 

4. 2 times that of helium

Subtopic:  Types of Velocities |
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The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K, the root mean square velocity of the gas molecules is v, at 480 K it becomes

1.  4v                                 

2.  2v

3.  v/2                               

4.  v/4

Subtopic:  Types of Velocities |
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The value of densities of two diatomic gases at constant temperature and pressure are d1 and d2 , then the ratio of the speed of sound in these gases will be :

1. d1d2                                   

2. d2/d1

3. d1/d2                             

4. d1d2

Subtopic:  Types of Velocities |
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By what factor the r.m.s. velocity will change, if the temperature is raised from 27°C to 327°C

1.  2                                 

2.  2

3.  22                               

4.  1

Subtopic:  Types of Velocities |
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At a given temperature if Vrms is the root mean square velocity of the molecules of a gas and Vs the velocity of sound in it, then these are related as γ=CPCv

1. Vrms=Vs                             

2. Vrms=3γ×Vs

3. Vrms=γ3×Vs                   

4. Vrms=3γ×Vs

Subtopic:  Specific Heat |
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Let A and B the two gases and given : TAMA=4.TBMB ; where T is the temperature and M is molecular mass. If CA and CB are the r.m.s. speed, then the ratio CACB will be equal to

1. 2                         

2. 4

3. 1                         

4. 0.5

Subtopic:  Types of Velocities |
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