Home
Class 11
CHEMISTRY
Reducing the pressure from 1.0 to 0.5 at...

Reducing the pressure from 1.0 to 0.5 atm would change the number of molecules in one mole of ammonia to

A

75% of initial value

B

50% of initial value

C

25% of initial value

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
Number of molecules in one mole of a gas viz `6.02 xx 10^(23)` is independent of pressure.
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER : GASES AND LIQUIDS

    MARVEL PUBLICATION|Exercise NUMERICALS|43 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    MARVEL PUBLICATION|Exercise Liquid State Vapour Pressure Surface Tension and Viscosity|19 Videos

  • SOLID STATE

    MARVEL PUBLICATION|Exercise Multiple choice questions|183 Videos

  • SURFACE CHEMISTRY

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|35 Videos

Similar Questions

Explore conceptually related problems

What is the number of molecules in 1.5 moles of ammonia ?

What is the number of molecules present in 1-5 mole of ammonia (NH_(3)) ?

What is the number of molecules present in 0.5 mole of hydrogen ?

A sample of helium gas is at a temperature of 300 K and a pressure of 0.5 atm . What is the average kinetic energy of a molecule of a gas ?

At 35^(@)C the vapour pressure of pure chloroform is 0.359 at atm and that of pure acetone is 0.453 atm. A solution containing 1 mole of chloroform and 4 mole of acetone has a vapour pressure of (in atm)

Addition of a non-volatile solute causes lowering in vapour pressure of a solvent from 0.8atm to 0.2atm . What is the mole fraction of solvent ?

MARVEL PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS -HIGHER LEVEL
  1. If the pressure and absolute temperature of 2 litres of CO(2) are doub...

    Text Solution

    |

  2. The density of methane at 2.0 atmosphere pressure at 27^(@)C is

    Text Solution

    |

  3. The density of a gas at 27^(@)C and 1 atm is d. Pressure remaining con...

    Text Solution

    |

  4. A vessel is filled with a mixture of oxygen and nitrogen. At what rati...

    Text Solution

    |

  5. At constant temperature 200 cm^(3) of N(2) at 720 mm and 400 cm^(3) of...

    Text Solution

    |

  6. If three unrective gases having partial pressures P P(B) and P(C) and ...

    Text Solution

    |

  7. The ratio of rates of diffusion of SO(2), O(2) and CH(4) is

    Text Solution

    |

  8. At what temperature is the K.E. Of a gas molecules half that of its va...

    Text Solution

    |

  9. The rate of diffusion of two gases X and Y is in the ration of 1:5 and...

    Text Solution

    |

  10. The density of helium is 0.1782 g per litre at N.T.P. Its density at 2...

    Text Solution

    |

  11. When equal weights of O(2) and N(2) are placed in separate contaniners...

    Text Solution

    |

  12. Two flasks X and Y have capacity 1 L and 2 L respectively and each of ...

    Text Solution

    |

  13. To raise the volume of a gas by four times the following methods may b...

    Text Solution

    |

  14. How much should the pressure be increased in order to decrease the vol...

    Text Solution

    |

  15. Reducing the pressure from 1.0 to 0.5 atm would change the number of m...

    Text Solution

    |

  16. In what ratio by mass carbon monoxide and nitrogen should be mixed so ...

    Text Solution

    |

  17. If the four tubes of a car are filled to the same pressure with N(2),...

    Text Solution

    |

  18. Equal volumes of gases at the same temperature and pressure contain eq...

    Text Solution

    |

  19. If the rms speed of gas molecules is x cm s^(-1) at a pressure of p at...

    Text Solution

    |

  20. Containers A and B have same, gases. Pressure, volume and temperature ...

    Text Solution

    |