write a note on Born haieber cycle
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Born-haber Cycle
Born-Haber Cycle is a methodology to analyze the reaction energy, which was introduced by German scientist Born and Firtz Haber. It explains about the formation of ionic compounds,
There are various processes involved in Born-Haber Cycle.
1. Electron affinity
2. Ionization energy
3. Sublimation energy
4. Heat of formation
5. Dissociation energy
Process 1: Electron affinity
Energy released when an electron is added to the neutral atom. The trend of electron affinity in the periodic table; electron affinity increases along the period (from left to right in the periodic table) and electron affinity decreases down the group.
Process 2: Ionization energy
Ionization energy is the energy required to remove an electron form a neutral atom or form an ion. In this process, energy is required to remove an electron from an atom; hence, the value of ionization energy will always be positive values. The trend of ionization energy in the periodic table is that ionization energy decreases from the top to bottom in the group and increases from left to right in the period.
Process 3: Sublimation Energy
It is the energy required to change the phase of the reactants from solid to gas. Since, energy is utilized for the conversion of one phase to another, sublimation energy is positive.
Process 4: Heat of formation
It is the energy change when a compound is formed from elements. The energy may be positive or negative since it depends on the interaction of the atoms in the molecule.
Process 5: Dissociation energy
It is the energy required to break a chemical bond. It is an endothermic process since it needs energy.
MAY THIS HELPS YOU...
Born-Haber Cycle is a methodology to analyze the reaction energy, which was introduced by German scientist Born and Firtz Haber. It explains about the formation of ionic compounds,
There are various processes involved in Born-Haber Cycle.
1. Electron affinity
2. Ionization energy
3. Sublimation energy
4. Heat of formation
5. Dissociation energy
Process 1: Electron affinity
Energy released when an electron is added to the neutral atom. The trend of electron affinity in the periodic table; electron affinity increases along the period (from left to right in the periodic table) and electron affinity decreases down the group.
Process 2: Ionization energy
Ionization energy is the energy required to remove an electron form a neutral atom or form an ion. In this process, energy is required to remove an electron from an atom; hence, the value of ionization energy will always be positive values. The trend of ionization energy in the periodic table is that ionization energy decreases from the top to bottom in the group and increases from left to right in the period.
Process 3: Sublimation Energy
It is the energy required to change the phase of the reactants from solid to gas. Since, energy is utilized for the conversion of one phase to another, sublimation energy is positive.
Process 4: Heat of formation
It is the energy change when a compound is formed from elements. The energy may be positive or negative since it depends on the interaction of the atoms in the molecule.
Process 5: Dissociation energy
It is the energy required to break a chemical bond. It is an endothermic process since it needs energy.
MAY THIS HELPS YOU...
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The Born–Haber cycle is an approach to analyze reaction energies. It was named after the two German scientists Max Born and Fritz Haber, The cycle is concerned with the formation of an ionic compound from the reaction of a metal (often a Group I or Group IIelement) with a halogen or other non-metallic element such as oxygen.
Born–Haber cycles are used primarily as a means of calculating lattice energy
which cannot otherwise be measured directly. The lattice enthalpy is the enthalpy change involved in the formation of an ionic compound from gaseous ions (an exothermic process), or sometimes defined as the energy to break the ionic compound into gaseous ions
Born–Haber cycles are used primarily as a means of calculating lattice energy
which cannot otherwise be measured directly. The lattice enthalpy is the enthalpy change involved in the formation of an ionic compound from gaseous ions (an exothermic process), or sometimes defined as the energy to break the ionic compound into gaseous ions
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