Home
Class 12
CHEMISTRY
For the reaction 2H(2)(g)+2NO(g) rarr ...

For the reaction
`2H_(2)(g)+2NO(g) rarr N_(2)(g)+2H_(2)O(g)`
the observed rate expression is, rate `=k_(f)[NO]^(2)[H_(2)].` The rate experssion for the reverse reaction is :

A

`k_(b) [N_(2)][H_(2)O]^(2)//[H_(2)]`

B

`k_(b) [N_(2)][H_(2)O]`

C

`k_(b) [N_(2)][H_(2)O]^(2)//[NO]`

D

`k_(b) [N_(2)][H_(2)O]^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`2H_(2) (g)+ 2NO(g) rarr N_(2)(g) +2H_(2)O(g)`
rate `=k_(f) [NO]^(2) [H_(2)]^(2) rArr K_(eq) =(k_(f))/(k_(b)) =([N_(2)][H_(2)O]^(2))/([NO]^(2) [H_(2)]^(2))`
At equilibrium, `r_(f) =r_(b)`
`k_(f) [H_(2)][NO]^(2) =(k_(b) [N_(2)][H_(2)O]^(2))/([H_(2)])`
Hence rate expression for reverse rxn
rate `=k_(b) ([N_(2)][H_(2)O]^(2))/([H_(2)])`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|52 Videos

  • CHEMICAL KINETICS

    VMC MODULES ENGLISH|Exercise Level-2 ( Numerical Value Type for JEE Main )|15 Videos

  • CHEMICAL EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE - G|10 Videos

  • CHEMICAL THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - L|10 Videos

Similar Questions

Explore conceptually related problems

For a reaction, 2N_(2)O_(5)(g) to 4NO_(2)(g) + O_(2)(g) rate of reaction is:

In the reaction 2H_(2)(g) + O_(2)(g) rarr 2H_(2)O (l), " "Delta H = - xkJ

For the reaction H_(2)(g)+I_(2)(g) hArr 2HI(g) , the rate of reaction is expressed as

Consider the reaction : 2H_(2)(g)+2NO(g)rarrN_(2)(g)+2H_(2)(g) The rate law for this reaction is : Rate = k[H_(2)][NO]^(2) Under what conditions could these steps represent mechanism? {:("Step 1:",2NO(g)hArrN_(2)O_(2)(g)),("Step 2:",N_(2)O_(2)+H_(2)rarrN_(2)O+H_(2)O),("Step 3:",N_(2)O+H_(2)rarrH_(2)O+N_(2)):}

For the reaction N_(2)(g) + 3H_(2)(g) rarr 2NH_(2)(g) Which of the following is correct?

For the reaction, N_(2)(g)+3H_(2)(g) hArr 2NH_(3)(g) , the units of K_(p) are …………

In the reversible reaction, 2HI(g) hArr H_(2)(g)+I_(2)(g), K_(p) is

For the reaction NO_2(g) +CO (g) to CO_2 (g) +NO (g) the experimentally determined rate expression below 400 K is: rate =k [NO_2]^2 . What mechanism can be proposed for the above reaction ?

VMC MODULES ENGLISH-CHEMICAL KINETICS -JEE Main (Archive)
  1. For the chemical reaction X Y , the standard reaction Gibbs energ...

    Text Solution

    |

  2. If a reation follows the Arrhensis equation the plot lnk vs1/(RT) give...

    Text Solution

    |

  3. Decomposition of X exhibits a rate constant of 0.5 mu g // year. How ...

    Text Solution

    |

  4. For a reaction, consider the plot of In K versus 1//T given in the fig...

    Text Solution

    |

  5. Consider the given plots for a reaction obeying Arrhenius equation (0^...

    Text Solution

    |

  6. The reactin 2X to B is a zeroth order reaction. If the initial concent...

    Text Solution

    |

  7. A bacterial infection in an internal wound grows as N'(t) = N(0) exp (...

    Text Solution

    |

  8. The given plots represent the variation of the concentration of a reac...

    Text Solution

    |

  9. For the reaction 2A + B rarrC, the values of ini concentrations are gi...

    Text Solution

    |

  10. In the following reaction, xA rarryB log(10)[-(d[A])/(dt)]=log(10)[...

    Text Solution

    |

  11. NO(2) required for a reaction is produced by the decomposition of N(2)...

    Text Solution

    |

  12. For the reaction of H(2) with I(2), the constant is 2.5 xx 10^(-4) dm^...

    Text Solution

    |

  13. Consider the given plot of enthalpy of the following reaction between ...

    Text Solution

    |

  14. For a reaction scheme Aoverset(k(1))toBoverset(k(2))toD , If the rate ...

    Text Solution

    |

  15. For the reaction 2H(2)(g)+2NO(g) rarr N(2)(g)+2H(2)O(g) the observ...

    Text Solution

    |

  16. Consider the following plots of rate constant versus (1)/(T) for four ...

    Text Solution

    |

  17. For following reactions A overset( 400K)( rarr) Product A underse...

    Text Solution

    |

  18. The rate of a certain biochemical reaction at physiological temperatur...

    Text Solution

    |

  19. During nuclear explosion, one of the products is""^(90(Sr)) with half-...

    Text Solution

    |

  20. Lacto bacillus has generation time 60 min. at 300 K and 40 min. at 400...

    Text Solution

    |