Home
Class 12
CHEMISTRY
Find the enthalpy of S-S bond from the f...

Find the enthalpy of S-S bond from the following data.
Report your answer by multiplying `1.08/100`
(i)`C_2H_5-S-C_2H_5(g) " " DeltaH_f^(2)=-147.2kJ//mol`
(ii)`C_2H_5-S-S-C_2H_5(g) " " DeltaH_f^(@)=-201.9 kJ//mol`
(iii)`S(g) " "DeltaH_f^(@)=222.8kJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
3 kJ/mol
`C_2H_5-S-C_2H_5+StoC_2H_5-S-S-C_2H_5`
`DeltaH_f^(@)(C_2H_5-S-C_2H_5)=DeltaH_f^(@)(C_2H_5-S-S-C_2H_5)-DeltaH_(s-s)+DeltaH_(sub)S`
-201.9= -147.2-`DeltaH_(s-s)` +222.8
`DeltaH_(s-s)`=277.5 kJ/mol
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise A.L.P|39 Videos

  • SOLID STATE

    RESONANCE|Exercise PHYSICAL CHEMITRY (SOLID STATE)|45 Videos

Similar Questions

Explore conceptually related problems

Find bond enthalpy of S-S bond from the following data: C_(2)H_(5)-S-C_(2)H_(5)," "DeltaH_(f)^(@)=-147.2kJ" "mol^(-1) C_(2)H_(5)-S-S-C_(2)H_(5)," "DeltaH_(f)^(@)=-201.9kJ" "mol^(-1) S(g)," "DeltaH_(f)^(@)=222.8kJ" "mol^(-1)

The S-S bond energy is if DeltaH_(f)^(@)(E_(t)-S-E_(t))=-147kJ//mol,DeltaH_(f)^(@)(E_(t)-S-S-E_(t))=-202kJ//mol and DeltaH_(f)^(@)S(g)=+223 kJ//mol:

The DeltaH_(f)^(0)(KF,s) is -563 kJ mol^(-1) . The ionization enthalpy of K(g) is 419 kJ mol^(-1) . and the enthalpy of sublimation of potassium is 88 kJ mol^(-1) . The electron affinity of F(g) is 322 kJ mol^(-1) and F-F bond enthalpy is 158 kJ mol^(_1) . Calculate the lattice enthalpy of KF(s) . The given data are as follows: (i) K(s)+1//2F_(2)(g)rarrKF(s)" "DeltaH_(f)^(0)= -563 kJ mol^(-1) (ii) K(g)rarrK^(+)(g)+e^(-)" "Delta_("Ioniz")^(0)=419 kJ mol^(-1) (iii) K(s)rarrK(g)" "DeltaH_("sub")^(0)=88kJ mol^(-1) (iv) F(g)+e^(-)rarrF^(-)(g)" "DeltaH_(eg)^(0)= -322 kJ mol^(-1) (v) F_(2)(g)rarr2F(s)" "DeltaH_("diss")^(0)= 158 kJ mol^(-1) (vi) K^(+)(g)+F^(-)(g)rarrKF(s)" " DeltaH_(L)^(0)=?

The enthalpy of vaporisation of liquid water using the data H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l) , DeltaH=-285.77 kJ//mol H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(g) , DeltaH=-241.84 kJ//mol

RESONANCE-RANK BOOSTER-All Questions
  1. A 100 ml mixture of CO and CO2 is passed through a tube containing red...

    Text Solution

    |

  2. 0.0333 M KMnO4 is used for the following titration.What volume of the ...

    Text Solution

    |

  3. Find the enthalpy of S-S bond from the following data. Report your a...

    Text Solution

    |

  4. The process requiring the absorption of energy is (are):

    Text Solution

    |

  5. The homologue of Ethyl propanoate is :

    Text Solution

    |

  6. The tautomers of the following compound can be :

    Text Solution

    |

  7. The molar heat of vapourization of toluene is DeltaHv if its vapour pr...

    Text Solution

    |

  8. Platinum crystallize in a face centered cube crystal with a unit cell ...

    Text Solution

    |

  9. 5 ml of standard gold sol, needs 0.5 mg of gelatin for its protection ...

    Text Solution

    |

  10. Consider the following chemical reaction and the corresponding kinetic...

    Text Solution

    |

  11. Match List I with List II and select the correct answer using the code...

    Text Solution

    |

  12. The high reactivity and low volatility of white phosphorous is due to:

    Text Solution

    |

  13. Match the compounds listed in column-I with characteristic type of rea...

    Text Solution

    |

  14. The brown ring complex compound of iron is formulated as [Fe (H(2)O)(5...

    Text Solution

    |

  15. Phenyl acetate underset((ii)H^(o+))overset((i)CH3MgBr("excess"))to'P' ...

    Text Solution

    |

  16. Text Solution

    |

  17. In the given structure at how many atoms the positive charge will be d...

    Text Solution

    |

  18. How many moles of acetic anhydride (Ac2O) is required to react complet...

    Text Solution

    |

  19. The ratio of P to V at any instant is constant and is equal to 1. for ...

    Text Solution

    |

  20. BF3 & C Cl4 on reaction with water produce & respectively:

    Text Solution

    |