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

325 `kJ//mol`

B

525 `kJ//mol`

C

`-175 kJ.mol`

D

`-325 kJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
C
2(i)-(iii)+(ii)
`Delta=2(150)-350-125`
= -175kJ/mol
Promotional Banner

Topper's Solved these Questions

  • NEET

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise CHEMISTRY|151 Videos

  • NEET

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise QUESTION|92 Videos

  • METALLURGICAL OPERATIONS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise MCQ|21 Videos

  • NEET 2018

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise QUESTION|45 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

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-NEET-MCQ
  1. Consider the following processes :- {:(,DeltaH(kJ//mol)),((1)/(2)A r...

    Text Solution

    |

  2. In a zero-order reaction for every 10^(@) rise of temperature, the rat...

    Text Solution

    |

  3. Which of the following pairs is isostractural (i.e having the same sha...

    Text Solution

    |

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

    Text Solution

    |

  5. In a reaction , A + B rarr Product, rate is doubled when the concentra...

    Text Solution

    |

  6. Limiting molar conductivity of NH(4)OH [i.e., Lambda(m)^(@)(NH(4)OH)] ...

    Text Solution

    |

  7. Which of the following species contains three bond pair and one lone ...

    Text Solution

    |

  8. Buffer solutions have constant acidity and alkalinity because

    Text Solution

    |

  9. In freundlich adsorption isotherm, the value of 1/n is :

    Text Solution

    |

  10. pH of saturated solution of Ba(OH)(2) is 12. The value of solubility p...

    Text Solution

    |

  11. When Cl(2) gas reacts with hot and concentrated sodium hydroxide solut...

    Text Solution

    |

  12. Which one of the following statements is incorrect about enzyme catal...

    Text Solution

    |

  13. P(A)and P(B) are the vapour pressure of pure liquid components ,Aand B...

    Text Solution

    |

  14. The protcting power of lyophilic colloidal solution is expressed in te...

    Text Solution

    |

  15. Maximum number of electrons in a sub-shell with l = 3 and n = 4 is.

    Text Solution

    |

  16. 50 mL of each gas A and of gas B takes 150 and 200 seconds respectivel...

    Text Solution

    |

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

    Text Solution

    |

  18. The total number of octahedral void (s) per atom present in a cubic cl...

    Text Solution

    |

  19. Correct set of four quantum numbers for the valence (outermost) electr...

    Text Solution

    |

  20. a metal crystallizes with a face-centered cubic lattice.The edge of th...

    Text Solution

    |

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

    Text Solution

    |