Home
Class 12
CHEMISTRY
Consider the following processes :- {:...

Consider the following processes :-
`{:(,DeltaH(kJ//mol)),((1)/(2)A rarr B,+150),(3B rarr2C+D,-125),(E+A rarr 2D,+350),("For "B+D rarr E+2C",",Delta H" will be"):}`

A

525 kJ / mol

B

`- 275 kJ / mol `

C

`- 325 kJ / mol `

D

325 kJ / mol

Text Solution

Verified by Experts

The correct Answer is:
B
`{:("Equation",Delta H),(A rarr 2B,+300 " kJ/ mol"^-1),(3B rarr 2C+D,-125 " kJ/mol "),(E+Ararr2D,+350 " kj/mol "):}`
`B + D rarr E+2C, Delta H = ? `
`Delta H = (300 -125-350 )= - 175 k J mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • Chemical Thermodynamics & Energetics

    NIKITA PUBLICATION|Exercise QUESTION FROM COMPETITIVE EXAM|35 Videos

  • CHEMICAL KINETICS

    NIKITA PUBLICATION|Exercise MCQs|351 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    NIKITA PUBLICATION|Exercise MCQs|224 Videos

Similar Questions

Explore conceptually related problems

Consider the following process :- Ato2B,DeltaH=+150 KJ 3Bto2C+D,DeltaH=+350 KJ G+Ato2D,DeltaH=+350 KJ For B+DtoG+2C,DeltaH will be

Consider the following equations for a cell reaction, A + B rarr C + D , E^(@) = x "volt", Delta G= Delta G_(1) 2A + 2B rarr 2C + 2D, E^(@) = y "volt", DeltaG = DeltaG_(2) Then,

The enthalpy change for the following process are listed below : (a) Cl_(2(g)) rarr 2Cl_((g)), DeltaH=242.3kJ mol^(-1) (b) I_(2(g))rarr 2I_((g)), DeltaH=151.0kJ mol^(-1) (c) ICl_((g)) rarr I_((g))+Cl_((g)), DeltaH=211.3kJ mol^(-1) (d) I_(2(s)) rarr I_(2(g)), DeltaH=62.76kJ mol^(-1) If standard state of iodine and chloride are I_(2(s)) and Cl_(2(g)) , the standard enthalpy of formation for ICl_((g)) is :

Complete the following reactions (a) XeF_(4) + H_(2)O rarr (b) XeF_(6) + SiO_(2) rarr (c ) XeF_(6) + H_(2) rarr (d) XeF_(6) + H_(2)O rarr (e ) XeF_(6) + SbF_(5) rarr (f) XeF_(6) + NH_(3) rarr

The conversion A to B is carried out by the following path : {:(C rarr D),(uarr" "darr),("A B"):} Given : Delta S_((A rarr C))=50 e.u. , Delta S_((C rarr D))=30 e.u., Delta S_((B rarr D))=20 e.u. where w.u. is entropy unit then Delta S_((A rarr B)) is

NIKITA PUBLICATION-Chemical Thermodynamics & Energetics-QUESTION FROM COMPETITIVE EXAM
  1. If the enthaply change for the transition of liquid water to steam is...

    Text Solution

    |

  2. Enthalpy change for the reaction, 4H((g))rarr 2H(2(g)) is -869.6 kJ ...

    Text Solution

    |

  3. Consider the following processes :- {:(,DeltaH(kJ//mol)),((1)/(2)A r...

    Text Solution

    |

  4. In view of the signs of Delta(r)G^(0) for the following reactions Pb...

    Text Solution

    |

  5. The value of enthalpy change (DeltaH) for the reaction C(2)H(5)OH (l...

    Text Solution

    |

  6. Consider the reaction, 4NO(2)(g)+O(2)(g)rarr2N(2)O(5)(g),Delta(r )H=...

    Text Solution

    |

  7. Match the transformation in colums I with appropriate options in colum...

    Text Solution

    |

  8. The entropy change involved in the isothermal reversible expansion of ...

    Text Solution

    |

  9. Which of the following is correct option for the free expansion of an ...

    Text Solution

    |

  10. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as...

    Text Solution

    |

  11. The entropy change involved in the isothermal reversible expansion of ...

    Text Solution

    |

  12. The incorrect expression among the following is

    Text Solution

    |

  13. In which of the following reactions,standard reaction entropy change(D...

    Text Solution

    |

  14. The enthalpy of fusion of water is 1.435 kcal//"mole". The molar entro...

    Text Solution

    |

  15. Standard enthalpy of vaporisationDeltaV(vap).H^(Theta) for water at 10...

    Text Solution

    |

  16. A piston filled with 0.04 mol of an ideal gas expands reversibly from ...

    Text Solution

    |

  17. At 27^(@)C, one mole of an ideal gas is compressed isothermally and re...

    Text Solution

    |

  18. A piston filled with 0.04 mol of an ideal gas compress reversibly from...

    Text Solution

    |

  19. Pressure-volume (PV) work done by an ideal gaseous system at constant ...

    Text Solution

    |

  20. The change of entropy is defined as

    Text Solution

    |