Home
Class 12
CHEMISTRY
The half life period of the reaction : ...

The half life period of the reaction :
`N_(2) O_(5) rarr 2NO_(2) +(1)/(2) O_(2)`
is 24 hrs at `30^(@) C ` . Starting with 10 g of `N_(2) O_(5)` how many grams of `N_(2) O_(5)` will remain after a period of 96 hours ?

A

`1.25 g `

B

`0.63 g`

C

`1.75 g `

D

`0.5 g`

Text Solution

Verified by Experts

The correct Answer is:
D
No. of half life periods =4
Amount left `=([A]_(0))/(2^(n))=(10)/(2^(4))=0.63 g `
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions ( Effect of Temperature Catalyst and Radiation on Rate of Reaction )|13 Videos

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level-II)|50 Videos

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions ( Order and Molecularity of Reactions )|21 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    MODERN PUBLICATION|Exercise Recent Examination Questions|17 Videos

  • CHEMISTRY IN EVERY DAY LIFE

    MODERN PUBLICATION|Exercise Recent Examination Questions|4 Videos
MODERN PUBLICATION-CHEMICAL KINETICS -Multiple Choice Questions ( Measuring Order of a Reaction : Integrated rate equation half life period )
  1. The rate constant for a fist order reaction is k = 7xx10^(-4)s^(-1) .T...

    Text Solution

    |

  2. The following rate date were obtained at 313 K for the reaction : 2A...

    Text Solution

    |

  3. The half life period of a reaction is 100 min . In 400 min the intitia...

    Text Solution

    |

  4. A radioactive substance is reduced to 1/8 of its original concentratio...

    Text Solution

    |

  5. The rate for the first order reaction is 0.0069 mol L^(-1) min^(-1) an...

    Text Solution

    |

  6. The half life period of the reaction : N(2) O(5) rarr 2NO(2) +(1)/(2...

    Text Solution

    |

  7. If the initial concentration of reactants in a certain reaction is dou...

    Text Solution

    |

  8. The conversion of A to B follows second order kinetics. Doubling the c...

    Text Solution

    |

  9. For an nth order reaction the half life period t(1//2) is proportional...

    Text Solution

    |

  10. The rate of a first order reaction is 1.5xx10^(-2) mol L^(-1) "min"^(-...

    Text Solution

    |

  11. In a first order reaction ArarrB if k is rate constant and initial co...

    Text Solution

    |

  12. The half life of a reaction is inversely proportionaly to the square o...

    Text Solution

    |

  13. Half the period of a first order reaction is 1386 seconds . The specif...

    Text Solution

    |

  14. The rate law for reaction between the substances A and B is given by :...

    Text Solution

    |

  15. A reaction was found to be second order with respect to the concentrat...

    Text Solution

    |

  16. The rate law for the chemical reaction : 2NO(2)Clrarr 2NO(2)+Cl(2) ...

    Text Solution

    |

  17. For a zero order reaction linear plot was obtained for [A] vs t. The s...

    Text Solution

    |

  18. The reaction : X rarr Product follows first order kinetics . In 4...

    Text Solution

    |

  19. The rate constant for a first order reaction is 60 s^(-1) . The time r...

    Text Solution

    |

  20. If the initial concentration of reactants in a certain reaction is dou...

    Text Solution

    |