Home
Class 12
CHEMISTRY
The values of equilibrium constant (K) o...

The values of equilibrium constant (K) of a reaction at `25^(@)C` and `50^(@)C` are `2xx10^(-4) and 2xx10^(-2)` respectively. Is the reaction an exothermic or an endothermic reaction?

Text Solution

Verified by Experts

With the increase in temperature, the value of equilibrium constant increases in case of an endothermic reaction, while it decreases in case of an exothermic reaction. For the reaction `K(50^(@)C)` is greater than `K(25^(@)C)`, indicating endothermic nature o the reaction.
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise QUESTION ANSWER ZONE FOR BOARD EXAMINATION (very short answer type)|30 Videos
  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise QUESTION ANSWER ZONE FOR BOARD EXAMINATION SHORT ANSWER TYPE|38 Videos
  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise PRACTICE TEST 7|14 Videos
  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 6|10 Videos

Similar Questions

Explore conceptually related problems

Equilibrium constants of a reaction at 20^(@)C and at 50^(@)C are 2.5 xx 10^(5) and 2 xx 10^(6) respectively. For this reaction -

The values of equilibrium constant for a particular reaction at 25^(@) C and 50^(@)C are 0.08 and 0.12 respectively. State whether it is an exothermic or an endothermic reaction.

The rate constants of a reaction at 35^(@)C and 65^(@)C " are " 6.65xx10^(-5)s^(-1) and 2.24xx10^(-3)s^(-1) respectively. Calculate the frequency factor of the reaction.

The equilibrium constant of a reaction is 2xx10^(-3) at 25^@C and 2xx10^(-2) at 50^@C . Is the reaction exothermic on endothermic? Explain.

The equilibrium constants for the reaction, N_2(g) + O_2(g) iff 2NO(g) , at 1727^@C and 2227^@C are 4.08 xx 10^-4 and 3.6 xx 10^-3 respectively. Calculate the enthalpy change for the reaction. (Given R = 1.987 cal.)

For a reaction the specific reaction rate constant at 35^@C and 65^@C are 6.65xx10^(-5) 5^(-1) and 2.24xx10^(-3) 5^(-1 calculate frequancy factor for the reaction.

At a particular temperature, the values of rate constant of forward and backward reactions are 1.5xx10^(-2)L*mol^(-1)*s^(-1) and 1.8xx10^(-3)L*mol^(-1)*s^(-1) respectively for the reaction A+B hArr C+D . Determine the equilibrium constnt of the reaction at that temperature.

The rate constant of a reaction 1.5xx10^(7)s^(-1) " at " 50^(@)C and 4.5xx10^(7)s^(-1) at 100^(@)C Evaluate the Arrhenius parameters A and E_(a)

Specific reaction rates for a reaction at 300K and 310K are 3xx10^(-6) S^(-1) and 2.8xx10^(-5 S^(-1 . Calculate the activation enrgy for that reaction.

CHHAYA PUBLICATION-EQUILIBRIUM-WARM UP EXERCISE
  1. For the reaction A+BhArr C+D, the equilibrium constant is K. what woul...

    Text Solution

    |

  2. We know, DeltaG^(0)=-RTlnK(c) and DeltaG^(0)=-RTlnK(p). Therefore in c...

    Text Solution

    |

  3. The values of equilibrium constant (K) of a reaction at 25^(@)C and 50...

    Text Solution

    |

  4. Consider the reaction, aX(2)(g)+bY(2)(g)hArrcXY(g)+ heat and answer th...

    Text Solution

    |

  5. Consider the reaction, aX(2)(g)+bY(2)(g)hArrcXY(g)+ heat and answer th...

    Text Solution

    |

  6. State Le Chatelier's principle.

    Text Solution

    |

  7. Explain the effect of (a) pressure and (b) continuous removal of HI at...

    Text Solution

    |

  8. What will be the effect of catalyst on the position of a chemical equi...

    Text Solution

    |

  9. For the following endothermic reactions: PCl(5)hArrPCl(3)(g)+Cl(2)(g) ...

    Text Solution

    |

  10. Consider the following reaction: 2A(g)+B(2)(g)hArr 2AB(g),DeltaH lt0...

    Text Solution

    |

  11. 2BrF(5)(g)hArr Br(2)(g)+5F(2)(g), At constant temperature, how the inc...

    Text Solution

    |

  12. 2BrF(5)(g)hArr Br(2)(g)+5F(2)(g), At constant temperature, how the inc...

    Text Solution

    |

  13. Consider the reaction, A(g)+2B(g)hArr 2D(g)+3E(g)+ heat and state how ...

    Text Solution

    |

  14. Consider the reaction, A(g)+2B(g)hArr 2D(g)+3E(g)+ heat and state how ...

    Text Solution

    |

  15. Consider the reaction, A(g)+2B(g)hArr 2D(g)+3E(g)+ heat and state how ...

    Text Solution

    |

  16. Consider the reaction, A(g)+2B(g)hArr 2D(g)+3E(g)+ heat and state how ...

    Text Solution

    |

  17. Consider the following reaction: What will be the effect on the follow...

    Text Solution

    |

  18. Consider the following reaction: What will be the effect on the follow...

    Text Solution

    |

  19. For this reactions, predict the effect on the following if pressure is...

    Text Solution

    |

  20. For this reactions, predict the effect on the following if pressure is...

    Text Solution

    |