Home
Class 12
CHEMISTRY
Which of the following relation represen...

Which of the following relation represents correct relation between standard electrode potential and equilibrium constant?
I. `logK = (nFE^(@))/(2.303RT)`
II. `K = e^((nFE)/(RT))`
III. `log K = (-nFE^(@))/(2.303 RT)`
IV. `log K = 0.4342 (-nFE^(@))/(RT)`
Choose the correct statement(s).

A

I, II and III are correct

B

II and III are correct

C

I, II and IV are correct

D

I and IV are correct

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • QUESTION-PAPERS-2016

    BITSAT GUIDE|Exercise CHEMISTRY|40 Videos

  • QUESTION-PAPERS-2018

    BITSAT GUIDE|Exercise CHEMISTRY|40 Videos

Similar Questions

Explore conceptually related problems

Which of the following relations represent correct relation between standard electrode potential and equilibrium constant ? I. logK = (nFE^(@))/(2303 RT) II. K = e^(-(nFE^(@))/(RT)) III. log K = (-nFE^(@))/(2303 RT) IV. log K = 0.4342 (nFE^(@))/(RT)

Show that 2.303 log K=-(triangleH^(0))/(RT)+(triangles^(0))/(R )

For a cell involving one electron E_(cell)^(0)=0.59V and 298K, the equilibrium constant for the cell reaction is: [Given that (2.303RT)/(F)=0.059V at T=298K ]

Variation of equilibrium constan K with temperature is given by van't Hoff equation InK=(Delta_(r)S^(@))/R-(Delta_(r)H^(@))/(RT) for this equation, (Delta_(r)H^(@)) can be evaluated if equilibrium constans K_(1) and K_(2) at two temperature T_(1) and T_(2) are known. log(K_(2)/K_(1))=(Delta_(r)H^(@))/(2.303R)[1/T_(1)-1/T_(2)] Select the correct statement :

Effect of temperature on the equilibrium process analysed by using the thermodynamics From the thermodynamics reaction DeltaG^(@)=-2.30RTlogk DeltaG^(@): Standing free energy change DeltaG^(@)=DeltaH^(@)-TDeltaS^(@) …(ii) DeltaH^(@) : Standard heat of the reaction gt From eqns.(i) and(ii) -2RTlogk=DeltaH^(@)=TDeltaS^(@) DeltaS^(@) : standard entropy change implies" "logK=-(DeltaH^(@))/(2.3RT)+(DeltaS^(@))/(2.3R) Clearly, if a plot of k vs 1/T is made then it is a straight lone having slope =(-DeltaH^(@))/(2.3R) amd y intercept =(DeltaS^(@))/(2.3R) If at temperature T_(1) equilibrium constant be k_(1) and at temperature T_(2) equilibrium constant be k_(2) then : implies" "logK_(1)=-(DeltaH^(@))/(2.3RT_(1))+(DeltaS^(@))/(2.3R) ..(iv) implies" "logK_(2)=-(DeltaH^(@))/(2.3RT_(2))+(DeltaS^(@))/(2.3R) ...(v) Substracting e.q (iv) from (v), we get from the relation we can conclude that the of equilibrium constant increase in temperature for endothermic reaction eith but value of equilibrium constant decrease with the increase in temperature for exothermic reaction For exothermic reaction if DeltaS^(@)lt0 then the sketch of log k vs (1)/(T) may be

BITSAT GUIDE-QUESTION-PAPERS-2017-CHEMISTRY
  1. Dead burnt plaster is .

    Text Solution

    |

  2. Stronger the oxidising agent , greater is the :

    Text Solution

    |

  3. Which of the following relation represents correct relation between st...

    Text Solution

    |

  4. Which of the following shows nitrogen with its increasing order of oxi...

    Text Solution

    |

  5. Vapour pressure#!#Raoult law#!#Raoult law as special case of Henry law

    Text Solution

    |

  6. E^(@) for the electrochemical cell Zn(s)|Zn^(2+) 1 M (Aq.)||Cu^(2+) ...

    Text Solution

    |

  7. Which of the following represents Gay Lussac's law ? I.(P)/(T)= cons...

    Text Solution

    |

  8. At constant TandP,Which of the following statements is correct for the...

    Text Solution

    |

  9. The energy of an electron in second Bohr orbit of hydrogen atom is :

    Text Solution

    |

  10. Which of the following order is wrong-

    Text Solution

    |

  11. Which of the following is not involved in the formation of photochemic...

    Text Solution

    |

  12. Which of the following is not contained by Portland cement?

    Text Solution

    |

  13. Which of the following can form buffer solution?

    Text Solution

    |

  14. Which of the following complex shows sp ^(3) d ^(2) hybridization?

    Text Solution

    |

  15. Which has glycosidic linkage?

    Text Solution

    |

  16. Which of the following represents SchottenBaumann reaction?

    Text Solution

    |

  17. Which of the following are correct chain isomers of butane ? (i) <im...

    Text Solution

    |

  18. Which of the following shows correct order of bond length?

    Text Solution

    |

  19. The numbers of radial nodes of 3s and 2p orbitals are respectively:

    Text Solution

    |

  20. If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.025...

    Text Solution

    |