Home
Class 11
CHEMISTRY
In the above figure mercury columns of 1...

In the above figure mercury columns of `10 cms` each are trapped between gas columns of `10 cm` each . If `P_(atm)=75 cm` of `Hg` then the gas pressure in the topmost column will be

A

`55 cm` of `Hg`

B

`35 cm` of `Hg`

C

`65 cm` of `Hg`

D

`45 cm` of `Hg`

Text Solution

Verified by Experts

The correct Answer is:
1

`P_(gas)=P_(atm)-10-10`
`=75-10-10=55` cm of Hg`=248.625mL,`
Promotional Banner

Topper's Solved these Questions

  • GASEOUS STATE

    RESONANCE ENGLISH|Exercise INORGANIC CHEMISTRY (COORDINATION COMPOUNDS)|36 Videos

  • GASEOUS STATE

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Hydrocarbon)|18 Videos

  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Match the column|1 Videos

  • GENERAL ORGANIC CHEMISTRY II

    RESONANCE ENGLISH|Exercise Part-III: Section-5: Matching List Type|1 Videos

Similar Questions

Explore conceptually related problems

In given figure, an ideal gas is trapped between a mercury column and the closed end of a uniform vertical tube. The upper end of the tube is open to the atmosphere. Initially the lengths of the mercury column and the trapped air colume are 12 cm and 50cm respectively. when the tube is titted solwly in a vertical plane through an angle of 30^(@) with horizontal then the new length of air colume is (x)/(41)m . Find x . Assuming the temperature to remains constant. (P_(atm) = 76 cm of Hg)

The difference in the heights of mercury columns in a closed end manometer connected to a gas container is found to be 15 cm. What is the pressure of the gas in terms of Pa ?

A horizontal uniform glass tube of 100cm length is sealed at both ends contains 10 cm mercury column in the middle , the temperature and pressure of air on either side of mercury column are repectively 31^(@)C and 76cm of mercury, if the air column at one end is kept at 0^(@)C and the other end at 273^(@)C then pressure if air which is 0^(@)C is (in cm of Hg )

Express one atm pressure in terms of the height of mercury column.

A U-tube contains water and oil separated by mercury. The mercury columns in the two arms are at the same level with 10 cm of water in one arm and 12.5 cm of oil in the other, as shown in figure. What is the relative density of oil ?

The length of a faulty barometer is 90 cm and there is a little air above the mercury. When the atmospheric pressure is 76cm of Hg it reads 74.8 cm. What will be the true atmospheric pressure if the reading on the barometer is 74.3cm ?

The arms of a U shaped tube are vertical. The arm on right side is closed and other arm is closed by light movable piston. There is mercury in the tube and initially the level of the mercury in the arms is the same. Above the mercury, there is an air column of height h in each arm, and initial pressure is the same as atmospheric pressure in both arms. Now pistion is slowly pushed down by a distance of h//2 (see figure) Let x is the displacement of mercury level in one of the stem and P_(1) is pressure in left column of air after compression, P_(2) is pressure in right column of air after compression and P_(0) is atmospheric pressure then

A U tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are at the same level with 10 cm of water in one arm and 12.5 cm of spirit in the other as shown in figure. The relative density of the spirit is

A U tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are at the same level with 10 cm of water in one arm and 12.5 cm of spirit in the other as shown in figure. The relative density of the spirit is

A barometer correctly reads the atmospheric pressure as 76cm of mercury. Water droplets are slowly introduced into the barometer tube by a dropper. The height of the mercury column first decreases and then become constant. If the saturation vapour pressure at the atmospheric temperature is 0.80cm of mercury, find the height if the mercury column when it reaches its minimum value.

RESONANCE ENGLISH-GASEOUS STATE-ORGANIC CHEMISTRY(Hydrocarbon)
  1. In the above figure mercury columns of 10 cms each are trapped between...

    Text Solution

    |

  2. A certain quantity of a gas occupied 100ml when collected over water a...

    Text Solution

    |

  3. The virial equation for 1mole of a real gas is written as : PV=RT ...

    Text Solution

    |

  4. Infinite number of flask are connected to one another as shown above. ...

    Text Solution

    |

  5. At point P and Q , the real gas deviation with respect to ideal gas is...

    Text Solution

    |

  6. A real gas most closely approaches the behaviour of an ideal gas at:

    Text Solution

    |

  7. If the number of molecules of SO(2) (atomic weight=64) effusing throug...

    Text Solution

    |

  8. A gaseous mixture contains three gases A,B and C with a total number o...

    Text Solution

    |

  9. 1 mol of a gaseous aliphatic compound CnH(3n)Om is completely burnt in...

    Text Solution

    |

  10. At what temperature will the molar kinetic energy of 0.3 mol of He be ...

    Text Solution

    |

  11. The volume of a gas increases by a factor of 2 while the pressure dec...

    Text Solution

    |

  12. Which has maximum internal energy at 290 K?

    Text Solution

    |

  13. There are 6.02 xx 10^(22) molecules each of N(2),O(2) and H(2) which a...

    Text Solution

    |

  14. At 27^(@)C, a ges is compressed to half of its volume . To what temper...

    Text Solution

    |

  15. A gas in an open container is heated from 27^(@)C" to "127^(@)C. The ...

    Text Solution

    |

  16. A V dm^(3) flask contains gas A and another flask of 2V dm^(3) contain...

    Text Solution

    |

  17. At low pressure, vander waal’s equation is reduced to [P + (a)/(V^(2))...

    Text Solution

    |

  18. 300 ml of a gas at 27^(@)C is cooled to -3^(@)C at constant pressure, ...

    Text Solution

    |

  19. In the ideal gas equation, the gas constant R has the dimension of -

    Text Solution

    |