Lattice Enthalpy in Ionic Compounds
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is lattice enthalpy?

  • The energy required to convert one mole of a solid ionic compound into liquid form
  • The energy required to form one mole of a solid ionic compound from its constituent ions
  • The energy released when one mole of a solid ionic compound is formed
  • The energy required to completely separate one mole of a solid ionic compound into gaseous constituent ions (correct)

    • Why is it not possible to calculate lattice enthalpy directly from the interaction of forces of attraction and repulsion only?

  • Because the lattice enthalpy is purely based on electrostatic forces
  • Because the lattice enthalpy is not affected by the crystal structure
  • Because the lattice enthalpy is influenced by the crystal geometry (correct)
  • Because the lattice enthalpy only depends on the type of ions present

    • How is bond length defined in a molecule?

  • As the distance between the outermost electrons of two bonded atoms
  • As the distance between the core and valence electrons of two bonded atoms
  • As the distance between the protons of two bonded atoms
  • As the distance between the nuclei of two bonded atoms (correct)

    • What is the covalent radius of an atom in a covalent bond?

    <p>The radius of an atom's core which is in contact with the core of an adjacent atom in a bonded situation</p> Signup and view all the answers

    How are bond lengths typically measured?

    <p>By spectroscopic, X-ray diffraction, and electron-diffraction techniques</p> Signup and view all the answers

    What does the van der Waals radius represent for an atom?

    <p>The overall size of the atom including its valence shell</p> Signup and view all the answers

    Why does He2 molecule not exist?

    <p>Its bond order is zero, indicating instability</p> Signup and view all the answers

    How is the electronic configuration of Li2 molecule different from Li atom?

    <p>Li2 has more electrons than Li</p> Signup and view all the answers

    Why is C2 molecule diamagnetic?

    <p>It contains no electrons in antibonding molecular orbitals</p> Signup and view all the answers

    How many electrons are present in O2 molecule based on the given text?

    <p>16 electrons</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser