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Questions and Answers
What is the lattice energy of LiF?
What is the lattice energy of LiF?
- -1050 kJ (correct)
- +520 kJ
- -75 kJ
- -328 kJ
What is the standard heat of formation ($ riangle H^{ heta}$) of solid LiF?
What is the standard heat of formation ($ riangle H^{ heta}$) of solid LiF?
- -1050 kJ/mol
- 192 kJ/mol
- 520 kJ/mol
- -617 kJ/mol (correct)
What is the total energy required for the ion formation of LiF from its elements?
What is the total energy required for the ion formation of LiF from its elements?
- +192 kJ (correct)
- +1050 kJ
- -617 kJ
- -75 kJ
Which step in the formation of lithium fluoride involves an exothermic process?
Which step in the formation of lithium fluoride involves an exothermic process?
What is the reason for the existence of ionic substances like lithium fluoride?
What is the reason for the existence of ionic substances like lithium fluoride?
What causes the production of atomic or line spectra?
What causes the production of atomic or line spectra?
What happens to the atoms of the gas when an electric discharge passes through it?
What happens to the atoms of the gas when an electric discharge passes through it?
Why do we not see a continuous spectrum when a narrow beam of light from an electric discharge is passed through a prism?
Why do we not see a continuous spectrum when a narrow beam of light from an electric discharge is passed through a prism?
What is characteristic of the wavelengths of spectral lines in an atomic spectrum?
What is characteristic of the wavelengths of spectral lines in an atomic spectrum?
What is another term for the series of lines observed when a narrow beam of light from an electric discharge is passed through a prism?
What is another term for the series of lines observed when a narrow beam of light from an electric discharge is passed through a prism?
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