Home
Class 12
CHEMISTRY
The activation energy of a reaction : ...

The activation energy of a reaction :
`X to Y`
is 9.0 kcal/mol.` The increase in rate constnat when the temperature is increased from 298 K to 308 K is :

A

`10%`

B

`50%`

C

`100%`

D

63.2%`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • UNIT TEST 4

    MODERN PUBLICATION|Exercise QUESTIONS|60 Videos

  • UNIT TEST 6

    MODERN PUBLICATION|Exercise Questions|60 Videos

Similar Questions

Explore conceptually related problems

The rate of most reactions becomes double when their temperature is raised from 298 K to 308 K. Calculate their activation energy.

How many times rate of reaction increases when temperature is incereased from - 4.2""^(@)C to 25.8""^(@)C .

The activation energy of a reaction is 56 .2 kJ mole . The ratio of rate constants at 305 K and 300 K is ( R=8 J mol^(-1) K^(-1) ) about :

The activation energies of two reactions are E_(1) and E_(2) (E_(1) gt E_(2)) . If the temperature of the system is increased from T_(1) to T_(2) , the rate constant of the reaction changes from k_(1) to k_(1) in the first reaction and k_(2) to k_(2) in second reaction predict which of the following expression is correct ?

The activation energy for a reaction at the temperature T K was found to be 2.303 RT J mol^(-1) . The ratio of the rate constant to Arrhenius factor is :

The equilibrium constant of a reaction is 0.008 at 298 K. The standard free energy change of the reaction at the same temperature is :

MODERN PUBLICATION-UNIT TEST 5 -QUESTIONS
  1. For the reacton: A + B to C +D if the concentration of the reactan...

    Text Solution

    |

  2. The activation energy of a reaction : X to Y is 9.0 kcal/mol. The ...

    Text Solution

    |

  3. Which of the following solutions will have maximum freezing point ?

    Text Solution

    |

  4. In spinel structure, O ^(2-) ions are cubic-closed packed, whereas 1/8...

    Text Solution

    |

  5. How many unit cells are present in a cube shaped ideal crystal of NaCl...

    Text Solution

    |

  6. Copper crystallizes in fcc with a unit cell length of 361 pm. What is ...

    Text Solution

    |

  7. The standard reduction potentials of Cu ^(2+) | Cu and Cu ^(2+) | Cu ^...

    Text Solution

    |

  8. Molar conductivity of a solution is 1.26 xx 10 ^(2) Omega ^(-1) cm ^(2...

    Text Solution

    |

  9. Consider the gaseous reaction having rate = k[A] [B] The volume of t...

    Text Solution

    |

  10. Sixteen gram of a radioactive substance are reduced to 1 g in one hour...

    Text Solution

    |

  11. If 5 g of an isotope sample has a half life of 30 days, the half life ...

    Text Solution

    |

  12. An aqueous solution of urea containing 6 g in 500 ml has a density equ...

    Text Solution

    |

  13. For the reaction A hArr B, it is found that the rate of reaction doubl...

    Text Solution

    |

  14. Which of the following statements is not correct regarding lyophilic a...

    Text Solution

    |

  15. The decompostion of hydrogen peroxide in the presence of I^(-) ion has...

    Text Solution

    |

  16. Blue colour of sea water is due to

    Text Solution

    |

  17. The boiling point of a solution containing 2.62 g of a substance A in ...

    Text Solution

    |

  18. The rate constnat of a reaction :

    Text Solution

    |

  19. If K (1) and K(2) are the rate constants at temperatures T (1) and T(2...

    Text Solution

    |

  20. The hydrolysis of an ester was carried out separately with 0.1 M HCl a...

    Text Solution

    |