Home
Class 12
CHEMISTRY
A cylinder fitted with a movable piston ...

A cylinder fitted with a movable piston contains liquid water in equiliberium with water vapour at `25^o C` . Which operation result in a decrease in the equiliberium vapour pressure ?

A

Moving the oiston downward a short distance

B

removing a small amount of vapour

C

Removing a small amount of the liquid water

D

Dissolving salt in the water

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    MBD PUBLICATION|Exercise QUESTION BANK|299 Videos
  • GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS

    MBD PUBLICATION|Exercise QUESTION BANK|564 Videos

Similar Questions

Explore conceptually related problems

A closed flask contains water in all its three states, solids, liquid and vapour at 0@C . In this situation the average KE of the water molecule will be:

Vapour pressure of a liquid ‘A’ is lighter than vapour pressure of liquid ‘B’ at 25^@ C. Which will have higher boiling point?

Which of the following has higher vapour pressure? (mercury, water)

What weight of the non volatile urea (NH_2CONH_2) must be dissolved in 100g water in order to decrease its vapour pressure by 25%?

Two liquid A and B boils at 155^@ c and 175^@ C respectively. Which of them has lighter vapour pressure at 100^@ C.

Two liquids A and B boil at 145^@C and 190^@C respectively.Which of them will have higher vapour pressure at 80^@C ?

Calculate the weight of non volatile solute (mw=90) which should be dissolved in 180g water to reduce its vapour pressure to 80%.

MBD PUBLICATION-EQUILIBRIUM-QUESTION BANK
  1. The solubility of CO 2 in water increases with :

    Text Solution

    |

  2. If K1 and K2 are the respective equiliberium constant for the two reac...

    Text Solution

    |

  3. A cylinder fitted with a movable piston contains liquid water in equil...

    Text Solution

    |

  4. The equiliberium constant for the reaction, 2X(g) + Y(g) ⇌ 2Z(g) is 2....

    Text Solution

    |

  5. At constant temperature in one litre vessel when the reaction 2SO2 (g)...

    Text Solution

    |

  6. For a reaction 2A + B ⇌ C + D , the partial pressure of A, B, C and D...

    Text Solution

    |

  7. The decomposition of N2O4 to NO2 is carried out at 280 K in chloroform...

    Text Solution

    |

  8. In the equiliberium 2SO2 (g) + O2 (g) ⇌2SO3 , the partial pressure ...

    Text Solution

    |

  9. For reaction PCl3 (g) + Cl2 (g) ⇌ PCl5 (g) the value of Kc at 250^oC i...

    Text Solution

    |

  10. At equiliberium , the amount of HI in a 3 litre vessel was 12.8 g. Its...

    Text Solution

    |

  11. One mole of nitrogen is mixed with 3 mole of hydrogen in a closed 3 li...

    Text Solution

    |

  12. 1.1 mole of A are mixed with 2.2 mole of Band the mixture is then kept...

    Text Solution

    |

  13. For the reactionA + B ⇌ C + D the initial cocentration pf A and B are ...

    Text Solution

    |

  14. The degree of dissociation ofPCl5 (alpha) obeying the equiliberium, ...

    Text Solution

    |

  15. If K1 and K2 are equiliberium constant for reactions (I) and (II) resp...

    Text Solution

    |

  16. The most favourable conditon of temperature and pressure for the oxida...

    Text Solution

    |

  17. When KOH is dissolved in water, Heat is evolved. If the temperature is...

    Text Solution

    |

  18. Solubility of a gas in liquid increaes on :

    Text Solution

    |

  19. A reversible chemical reaction having two reactant is in equiliberium....

    Text Solution

    |

  20. Reaction favoured by low pressure is :

    Text Solution

    |