Why does LiCl have a higher melting point?
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Why does LiCl have a higher melting point?
More the charge of cation or anion, stronger will be the force of attraction between the ions which leads to higher melting point. The size of LiCl is small and due to this it exhibits excessive polarization which leads to high covalent character in contrast to NaCl which is ionic in nature.
Which covalent compound has a higher melting point than LiCl?
NaCl has an interesting property , it’s lattice enthalpy is greater than KCl and RbCl , thus it’s melting point is higher than them. And then comes LiCl who is more ‘Covalent ‘ in nature than NaCl, therefore resulting in a lower melting point than NaCl. This is an indeed interesting thing.
Does LiBr have a high or low melting point?
LiBr has lower melting point than LiF.
Why does lithium have the highest melting point?
The element lithium has higher ionization enthalpy than other alkali metals. This is due to the small size of lithium compared to other elements of that group. The binding energy of lithium in the crystal lattice is very high. Due to the high ionization and binding energies, lithium has high melting and boiling points.
Why does cacl2 have a higher melting point than LiCl?
Ionic compounds are formed when electrostatic attractions form between oppositely charged ions. These attractions are strong and so require a large amount of energy to break. This energy is provided in the high melting temperature. CaO has a higher melting point than LiCl due to the Ca2+ ion.
Is LiCl more soluble than NaCl?
Although lithium fluoride and magnesium oxide contain cations and anions of roughly the same size, lithium fluoride is much more soluble in water (2.7 g/L) than magnesium oxide (0.087 g/L) at room temperature….Problem 3.4. 3.
| Compound | Water Solubility in g/L at 20oC |
|---|---|
| LiCl | 83 |
| NaCl | 359 |
| KCl | 344 |
Why LiCl has higher boiling point than HCl?
Answer: LiCl has higher boiling point that HCl because of the stronger intermolecular forces in LiCl. Explanation: On the other hand, in LiCl, Li⁺ is very small in size and Cl⁻ is larger and hence they have an ionic bond hence stronger inter molecular forces and hence LiCl has a higher boiling point.
Why Lil has lower melting point than LiF?
LiI has lower melting point than LiF. FΘ ion has smaller size as compared to IΘ ion, therefore FΘ ion is less polarisable as compered to IΘ ion and hence LiF is less convalent than LiI. Thus LiI has lower melting point than LiF. c.
Which group element has the highest melting point?
The chemical element with the lowest melting point is Helium and the element with the highest melting point is Carbon. The unity used for the melting point is Celsius (C).
Why does NaCl have a higher melting point than LiCl KCl or Rbcl?
(ii) K+ is larger than Na+ so NaCl has a higher lattice energy and a higher melting point than KCl. The Ag+ ion is intermediate in size between Na+ and K+.