Table of Contents
Introduction of Lattice Enthalpy
Lattice enthalpy is a measure of the energy required to break the ionic bonds in a crystal lattice and disperses the ions into the gas phase. It is expressed in kJ/mol.
What is Lattice Enthalpy?
The lattice enthalpy is the enthalpy change that takes place when one mole of an ionic compound dissociates into its component ions in a lattice structure.
What are the Factors of Lattice Enthalpy?
Lattice enthalpy is the energy required to break the lattice of a solid and convert it into gaseous atoms or molecules. It is a measure of the strength of the chemical bond between atoms in a solid. The lattice enthalpy is affected by the type of atoms, the distance between atoms, and the strength of the chemical bond.
Can Lattice Enthalpy be Positive or Negative?
The lattice enthalpy (ΔH) is the change in enthalpy that accompanies the formation of a unit cell of a solid substance from its component atoms or molecules in the gas phase. The lattice enthalpy is always positive because it is a measure of the energy released when the atoms or molecules form a solid.
How to Calculate Lattice Enthalpy?
To calculate lattice enthalpy, you need to know the chemical formula of the compound, the molar mass of the compound, and the temperature of the calculation.
Step 1: Convert the temperature to Kelvin.
Step 2: Calculate the average molar mass of the compound.
Step 3: Calculate the enthalpy of formation of the compound.
Step 4: Calculate the lattice enthalpy of the compound.
Lattice enthalpy = (enthalpy of formation) – (average molar mass)
Grid Energy and Cross-Section Enthalpy
FIGURE 2
The figure above shows the enthalpy of a gas as a function of its cross-sectional area. It can be seen that as the cross-sectional area decreases, the enthalpy increases.
Sodium Chloride Precious Stone Cross-Section
This is a cross-section of a precious stone that has been cut in half to show the internal structure. The center is made up of a number of small, interlocking crystals that are surrounded by a web of smaller crystals. This web of crystals is in turn surrounded by a thin layer of clear quartz.
Hypothetical Medicines
If you could take a magic pill that would make you instantly smarter, would you take it?
Yes, I would take a magic pill that would make me instantly smarter.
Conceived Landé Condition
In mathematics, a Landé condition is a condition on a function in order for it to be differentiable at a point.
A function is differentiable at a point “x” if the derivative of the function exists at “x” and is continuous at “x”. A function is said to satisfy a Landé condition at “x” if the derivative of the function is bounded by a constant at “x”.
Kapustinskii Condition
A condition proposed by Russian mathematician A.N. Kapustinskii in 1933 that a function be continuous and differentiable on a closed and bounded interval in order for it to be integrable.
Impact of Polarization
The impact of polarization is significant. Polarization can lead to the formation of political parties, which can then advocate for their own interests. This can lead to gridlock in government, as the different parties battle for control. It can also lead to the formation of special interest groups, which can lobby for their own interests. This can lead to the implementation of policies that are not in the best interest of the majority of people.
