Home
Class 12
CHEMISTRY
(a) How much H(2)( in mol ) is needed to...

(a) How much `H_(2)`( in mol ) is needed to inflate a balloon of radius 3m to a pressure of1 atmp in an ambient temp at `25^(@)C` at sea level.
(b) What mass can the balloon lift at sea level, where the density of air is `1.22 Kg m^(-3)`.
( c ) What would be the pay load if He were used instead of `H_(2)`.

Text Solution

Verified by Experts

The correct Answer is:
`4.62 xx10^(3) `moles, 128.79 kg, 119.55Kg
Promotional Banner

Topper's Solved these Questions

  • GASEOUS STATE

    MOTION|Exercise EXERCISE-4( LEVEL-I)|15 Videos

  • GASEOUS STATE

    MOTION|Exercise EXERCISE-4( LEVEL-II)|19 Videos

  • GASEOUS STATE

    MOTION|Exercise EXERCISE-2(LEVEL-II)|35 Videos

  • ELECTROCHEMISTRY

    MOTION|Exercise EXERCISE-4,II|44 Videos

  • GOC

    MOTION|Exercise Exercise - 4 Level - II|14 Videos

Similar Questions

Explore conceptually related problems

A hot air balloon is a sphere of radius 8 m . The air inside is at a temperature of 60^@C. How large a mass can the balloon lift when the outside temperature is 20^@C ? (Assume air is an ideal gas R = 8.314 J mol e ^(-1) K^(-1), 1 atm. = 1.013 xx 10^5 Pa , the membrane tension is 5 Nm^(-1))

What would be the height of the atmosphere if the air density (a) were uniform and (b) decreased linearly to zero with height? Assume that at sea level the air pressure is 1.0 atm and the air density is 1.3 kg/ m^(3)

If the density of a gas at the sea level at 0^(@)C is 1.29 kg m^(-3) , what is its molar mass? (Assume that pressure is equal to 1"bar" .)

A balloon inflated with helium gas (density = 0.2 kg//m^(3) ) has a volume of 6 xx 10^(-3) m^(3) . If the density of air is 1.3 kg//m^(3) . What is the buoyant force exerted on the balloon ?

A balloon of diameter 21 meter weight 100 kg. Calculate its pay-load, if it is filled with He at 1.0 atm and 27^(@)C . Density of air is 1.2 kg m^(-3) . (Given : R=0.082 L atm K^(-1)mol^(-1) )

A partially inflated balloon contains 500 m^3 of helium at 27^@ C and 1 atm pressure. What is the volume of the helium at an altitude of 18000 ft , where the pressure is 0.5 atm and the temperature is -3^@ C ?

In a test experiment on a model aeroplane in a wind tunnel, the flow speeds on the upper and lower surface of the wing are 70 ms^(-1) and 63 ms^(-1) respectivley. What is the lift on the wing if its area is 2.5 m^(2) ? Take the density of air is 1.3 kg m^(-3) .

A balloon filled with hydrogen has a volume of 1m^(3) and its mass is 1kg . What would be the volume of the block of a very light material which it can just lift ?

MOTION-GASEOUS STATE -EXERCISE-3
  1. A manometer attached to a flask contains NH(3) gas have no difference ...

    Text Solution

    |

  2. 16 gm of O(2) was filled in a container of capacity 8.21 lit. at 300 ...

    Text Solution

    |

  3. (a) How much H(2)( in mol ) is needed to inflate a balloon of radius 3...

    Text Solution

    |

  4. Calculate the pressure of a barometer on an aeroplane which is at an a...

    Text Solution

    |

  5. What will be the temperature difference needed in a hot air balloon to...

    Text Solution

    |

  6. An iron cylinder contains helium at a pressure of 250 k pa and27^(@)C....

    Text Solution

    |

  7. Determine final pressure after the valve is left opened for along time...

    Text Solution

    |

  8. One mole of NH(4) Cl ( s) is kept in an open container & then covered ...

    Text Solution

    |

  9. Fixed mass of a gas is subjected to the changes as shown is diagram, c...

    Text Solution

    |

  10. A balloon containing 1 mole air at 1 atm initially is filled further w...

    Text Solution

    |

  11. One mole of an ideal gas is subjected to a process in which P =( 1)/( ...

    Text Solution

    |

  12. A compound exists in the gaseous phase both as monomer (A) and dimer (...

    Text Solution

    |

  13. During one of his adventure Chacha Chaudhary got trapped in an undergr...

    Text Solution

    |

  14. You are told to prepare a closed experimental environment ( a box) for...

    Text Solution

    |

  15. A closed vessel of known volume containing known amount of ideal gaseo...

    Text Solution

    |

  16. The apparatus shown consits of three temperature jacketed 1 litre bulb...

    Text Solution

    |

  17. Calcualte relative rate of effusion of SO(2) to CH(4) under given cond...

    Text Solution

    |

  18. A gas mixture contains equal number of molecules of N(2) and SF(6). So...

    Text Solution

    |

  19. Two gases NO and O(2) were introduced at the two ends of a 1m long tub...

    Text Solution

    |

  20. At 20^(@)C, two balloons of equal volume and porosity are filled to a ...

    Text Solution

    |