Home
Class 11
CHEMISTRY
Few values of enthalpies are given below...

Few values of enthalpies are given below: `O=-141 KJ mol^(-1)`
`F= -328 KJ mol^(-1)`
`S= -200 KJ mol^(-1)`
`Cl= -349 KJ mol^(-1)` What do these values show?

A

Ionisation enthalpy

B

Bond enthalpy

C

Electron gain enthalpy

D

Hydration enthalpy

Text Solution

Verified by Experts

The correct Answer is:
C

Negative value of electron gain enthalpy of is more than of oxygen and for Cl it is more than that of fluorine.
Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|10 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NCERT FINGERTIPS|Exercise NCERT Exemplar|12 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NCERT FINGERTIPS|Exercise Electronic Configuration And Type Of Elements|20 Videos
  • CHEMICAL BONDING & MOLECULAR STRUCTURE

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • ENVIRONMENTAL CHEMISTRY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Bond energies of few bonds are given below : Cl-Cl="242.8 kJ mol"^(-1), H-Cl="431.8 kJ mol"^(-1) . O-H="464 kJ mol"^(-1), O=O=""442 kJ mol"^(-1) Using the B.E., calculate DeltaH for the following reaction, 2Cl_(2) +2H_(2)Orarr4HCl+O_(2)

Calculate the heat of combustion of eithene CH_(2) = CH_(2)(g) + 3O_(2)(g) rarr 2CO_(2)(g) + 2H_(2)O(I) The bond energy data are given below C = C = 619 kJ mol^(-1) C - H = 414 kJ mol^(-1) O = O = 499 kJ mol^(-1) C = O = 724 kJ mol^(-1) O - H = 460 kJ mol^(-1)

The first four ionization enthalpies of an element are 578 kJ mol^(-1), 1817kJ mol^(-1), 2745kJ mol^(-1) , and 11575 kJ mol^(-1) . The element is

The combustion enthalpies of carbon, hydrogen and ethyne are -393.5 kJ mol^(-1), - 285.8 kJ mol^(-1) and -1309.5 kJ mol^(-1) respectively at 25^(@)C . The value of standard enthalpy of formation of acetylene at this temperature is

For the reaction N_(2)+3X_(2) to 2NX_(3) where X=F, Cl (the average bond energies are F-F = 155 kJ "mol"^(-1) N-F = 272 kJ "mlo"^(-1) , Cl-Cl = 242 kJ "mol"^(-1) , N-Cl= 200 kJ "mol"^(-1) and N -=N = 941 kJ "mol"^(-1) ), the heats of formation of NF_(3) and NCl_(3) in kJ "mol"^(-1) , respectively, are closest to

Given that the food energies of :N-=N is 946kJ "mol"^(-1) , H-H is 435 kJ "mol"^(-1),N-N is 159 kJ "mol"^(-1) , and N-H is 389 kJ "mol"^(-1) , the heat of formation of hydrazine in the phase in kJ "mol"^(-1) is :

Following are the values of E_(a) and Delta H for three reactions carried out at the same temperature : I: E_(a) =20 kJ mol^(-1), Delta H =-60 kJ mol^(-1) II: E_(a) =10 kJ mol^(-1), Delta H =-20 kJ mol^(-1) III: E_(a) =40 kJ mol^(-1), Delta H=+15 kJ mol^(-1) If all the three reaction have same frequency factor then fastest and slowest reactions are :

NCERT FINGERTIPS-CLASSIFICATION OF ELEMENTS AND PERIODICITY -Periodic Trends In Properties Of Elements
  1. Consider these electronic configurations for neutral atoms: (i) 1s^(...

    Text Solution

    |

  2. Which of the following element will have highest ionization energy?

    Text Solution

    |

  3. Few values of enthalpies are given below: O=-141 KJ mol^(-1) F= -328 K...

    Text Solution

    |

  4. In the given graph,a periodic property (R) is plotted against atomic n...

    Text Solution

    |

  5. Which is correct increasing order of their tendency of the given eleme...

    Text Solution

    |

  6. Which of the following have least electron affinity?

    Text Solution

    |

  7. Which one of the following arrangements represents the correct order o...

    Text Solution

    |

  8. Which of the following statements is not correct about the electron ga...

    Text Solution

    |

  9. Why is the electron gain enthalpy of O or F less than that of S or Cl?

    Text Solution

    |

  10. Which of the following statements regarding an anion is not true?

    Text Solution

    |

  11. Which of the following properties of isotopes of an element is differe...

    Text Solution

    |

  12. Given below are the names of new elements based on their position in t...

    Text Solution

    |

  13. Which of the following noble gases has the maximum positive electron g...

    Text Solution

    |

  14. An atom with high electronegativity has

    Text Solution

    |

  15. Study the given diagram of the periodic table and fill the blanks with...

    Text Solution

    |

  16. Which of the following is not a periodi0c property for the elements?

    Text Solution

    |

  17. Fill in the blanks with appropriate option the ability of an atom to a...

    Text Solution

    |

  18. Which of the following options are not in accordance with the property...

    Text Solution

    |

  19. Choose the incorrect statement.

    Text Solution

    |

  20. Following statements regarding the periodic trends of chemical reactiv...

    Text Solution

    |