Home
Class 12
CHEMISTRY
Enthalpy change in the following process...

Enthalpy change in the following process is `A+ e^(-) to A^(-) Delta H= - X kJ//"mole"`
Which of the following processes has enthalpy change=X kJ/mole ?

A

Option 1. `A^(-2) to A^(-)+1e^(-)`

B

Option 2. `A+e^(-) to A^(-)`

C

Option 3. `A^(-) to A+ e^(-)`

D

Option 4. `A^(+)+e^(-) to A`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section -C)|12 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section -D Linked Compreshension Type Questions)|6 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section -A)|40 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment ( SECTION - A)|45 Videos

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-J Aakash Challenger Questions )|10 Videos

Similar Questions

Explore conceptually related problems

The enthalpy change for the process C("graphite") rarr C(g) is called

The correct order of electron gain enthalpy (in kJ/mole) is

State whether the following processes is exothermic or endothermic : H_2O (l) to H_2O (s) , Delta H = - 6.01 kJ

If a process has Delta H = 548.3 kJ and Delta S = 32 J/mole at 298 K then will the process be spontaneous at this temperature ?

18.0 g of water completely vaporises at 100^(@)C and 1 bar pressure and the enthalpy change in the process is 40.79 kJ mol^(-1) . What will be the enthalpy change for vaporising two moles of water under the same conditions ? What is the standard enthalpy of vaporisation for water ?

Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectively. Which of the following statements is incorrect ?

Enthalpy change for the process, H_(2)O"(ice")hArr H_(2)O"(water)" is "6.01 kJ mol"^(-1) . The entropy change of 1 mole of ice at its melting point will be

The enthalpy change for transition of liquid water to steam is 40.8 kJ mol^(-1) at 373K. Calculate Delta S for the process.

Represent the potential energy/enthalpy change in the following processes graphically. (a) Throwing a stone from the ground to roof. (b) (1)/(2) H_(2) (g) + (1)/(2) Cl_(2) (g) hArr HCl (g) Delta_(r) H^(Θ) = - 92.32 kJ mol^(-1) In which of the processes potential energy/enthalpy change is contributing factor to the spontaneity ?

A: Total enthalpy change of a multistep process is sum of Delta H_(1) + Delta H_(2) + Delta H_(3) + .... R: When heat is absorbed by the system, the sign of q is taken to be negative.

AAKASH INSTITUTE ENGLISH-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Assignment (Section -B)
  1. Which among the following elements has the highest value for third ion...

    Text Solution

    |

  2. The screening effect of inner electrons of an atom can cause

    Text Solution

    |

  3. The diagonal similarities are due to similar polarising powers for the...

    Text Solution

    |

  4. Which of the following gradation in the properties is false, as we mov...

    Text Solution

    |

  5. The increasing order of electron affinity values of O,S and Se is

    Text Solution

    |

  6. The element which has highest II^(nd) I.E. ?

    Text Solution

    |

  7. The element which has highest electron affinity ?

    Text Solution

    |

  8. Electronegativity of an element is 1.0 on the Pauling scale. Its value...

    Text Solution

    |

  9. Which of the following element has highest shielding constant ?

    Text Solution

    |

  10. Which one of the following order is correct ?

    Text Solution

    |

  11. Which one of the following oxides has highest acidic character ?

    Text Solution

    |

  12. Electron gain enthalpy will be positive in

    Text Solution

    |

  13. Enthalpy change in the following process is A+ e^(-) to A^(-) Delta H=...

    Text Solution

    |

  14. Uub is the symbol for the element with atomic number-

    Text Solution

    |

  15. An element has electronic configuration [Xe] 4f^(7), 5d^(1),6s^(2). It...

    Text Solution

    |

  16. A sudden large jump between the value of second and third ionization e...

    Text Solution

    |

  17. An element has 56 nucleons in nucleus and if it is isotonic with ""(30...

    Text Solution

    |

  18. Which of the following processes will release energy equal to ionziati...

    Text Solution

    |

  19. The chemistry of Be is very similar to that of aluminium, because

    Text Solution

    |

  20. The ionisation energy of Li is 500 KJ/mole. The amount of energy requi...

    Text Solution

    |