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Explain why the theoretical lattice energies become less exothermic from AgF to AgI?
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∙ 10y ago
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∙ 10y ago
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Are lattice and cohesive energies same?
Lattice energy is energy required to separate ions to infinite distance with no more interaction. Cohesive energy is energy required to separate atoms to infinite distance with no more interaction.
What is the use of reciprocal lattice in crystal?
In physics, the reciprocal lattice of a lattice (usually a Bravais lattice) is the lattice in which the Fourier Transform of the spatial function of the original lattice (or direct lattice) is represented. This space is also known as momentum space or less commonly k-space, due to the relationship between the Pontryagin momentum and position. The reciprocal lattice of a reciprocal lattice is the original or direct lattice.
How does lattice energy change with a change in the size of an ion?
Because the electrostatic force of attraction between opposite charges increases as the distance between the charges decreases, smaller ions produce stronger inter ionic attractions and greater lattice energies. When attraction between ions increases and the charge of the ion increases , the lattice energy increases. Down the groups in periods the lattice energy decreases
Is the side centered cube a bravais lattice?
Hi, No the side centered lattice is not a Bravais Lattice as the lattice doesn't look the same from an atom on the corner of the cube and an atom in the middle of a vertical edge of the cube (they don't even have the same number of neighbors). In fact, the side centered lattice is a simple cubic lattice with a basis of two atoms.
What effect does heating a solid to a high temperature have on its crystal lattice?
The lattice breaks apart and the ions flow freely.
Why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide?
The lattice energy of potassium bromide is more exothermic than the lattice energy of rubidium iodide because lattice energy is inversely proportional to atomic radius.
How large would the lattice energy need to be for the formation of NaCl2 to be exothermic?
The lattice energy would need to be 4711 kJ for the formation of NaCl2 to be exothermic.
Why do some pair of ions in solution form precipitates?
It is a matter of lattice energy vs. heat of solution. The lattice energy is the energy change associated with the ions in the gas phase forming a solid (crystalline) lattice. It is typically an exothermic process, liberating energy. The heat of solution is the energy change associated with the ions being dissolved by solvent, and can be exothermic or endothermic. If the heat of solution is more exothermic than the lattice energy, than it is energetically favorable for the ionic compound to be solvated. If the lattice energy is more exothermic, than solvation will not occur.
Born haber cycle n its applications?
it is used for calculating lattice energies of different ions.
What are the lattice energies of barium sulphate and calcium carbonate and how do they relate to dissolution in acids?
don't know xd
How lattice energy affect solubility?
A high hydration energy gives an increased solubility.
Are lattice and cohesive energies same?
Lattice energy is energy required to separate ions to infinite distance with no more interaction. Cohesive energy is energy required to separate atoms to infinite distance with no more interaction.
How would you compare the crystal lattice energy compared to the energies of the neutral atoms forming the ionic compound?
I don't know I have no arms :(
Why is the formation of ionic compound exothermic?
Look at the problem from the other angle why does it take energy to break up an ionic lattice. It is because of the electrostatic attrction of the ions which has to be overcome. A measure of the is energy is the lattice enthalpy which depends on the charges, th einterionic distances and the geometry of the lattice.
What is the definition of enthalphy?
The lattice energy of an ionic solid is a measure of the strength of bonds in that ionic compound. It is usually defined as the enthalpy of formation of the ionic compound from gaseous ions and as such is invariably exothermic. The concept of lattice energy has initially been developed for rocksalt-structured and sphalerite-structured compounds like NaCl and ZnS, where the ions occupy high-symmetry crystal lattice sites. In case of NaCl, the lattice energy is the energy released by the reaction
Which property of calcium oxide does the lattice structure explain?
according to my calculations it explains the high melting point
Why does plaster of Paris get hot?
Plaster of Paris is a classic exothermic reaction. The gypsum when heated to 150 degrees dehydrates with 75% of water content escaping as vapor. When water is reintroduced it resets the crystal lattice and gives off heat.
