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To calculate the cohesive energy, let us consider the general situation of two identical atoms. As the atoms approach, the attractive forces increases and potential energy decreases. At the equilibrium position the potential energy of either two atom is given by
U= decrease in potential energy due to attraction + increase in potential energy due to repulsion.
work done in moving through a small distance dr is given by
du(r) + F(r)dr
Hence the potential energy if the atom
U(r)=int du(r) = int F(r)dr
= int(A/rM - B/rN)dr
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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.
The transfer of energy from molecule to molecule is called?
conduction
What is the tension in liquid and cohesive force?
Net force of a single molecule in the bulk is zero attrated equally strong to its negibors. On thr surface, the conesive force will tend to pull the molecule back to the bulk of the fluid.
What energy does a moving molecule have?
thermal
What is cohesive energy?
Adhesion: attractive force between 2 particles in different substances, like water and glass molecules Cohesion: attractive force that holds molecules of a single substance together, like the surface tension on water
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.
Is force of attraction between molecule of milk and molecule of water cohesive?
Water molecules are very cohesive due to the relative positive charge of their hydrogen atoms compared to their oxygen atoms, this allows them to form strong hydrogen bonds in a tetrahedral configuration.
What is the potential energy surface of a molecule?
potential energy of a molecule is equivelent to the energy of the molecule in a fusion state
Is energy a molecule?
Energy is not 'matter', so it is not be a molecule.
What is cohesive energy in case of NaCl?
If you think to lattice energy the value is 789 kJ/mol.
What are the attractive forces between like substances called?
The ability of like molecule to attract is called cohesive force
Why does reducing a molecule give that molecule greater potential energy?
Reducing the size of a molecule gives that molecule greater potential energy because the molecule isn't using that energy since it is smaller. Being larger would make less potential energy.
Why are water molecules cohesive?
The slightly negative charge on the oxygen atom of one water molecule forms a weak electrostatic attraction between the slightly positive charge on a hydrogen atom of another water molecule. This is called a hydrogen bond. The hydrogen bonding between the water molecules is why water is highly cohesive.
What makes water highly cohesive?
The slightly negative charge on the oxygen atom of one water molecule forms a weak electrostatic attraction between the slightly positive charge on a hydrogen atom of another water molecule. This is called a hydrogen bond. The hydrogen bonding between the water molecules is why water is highly cohesive.
What is cell transfers energy by shuttling from moleule to molecule?
The cell transfers energy through the process of cellular respiration, where molecules such as glucose are broken down to produce ATP (adenosine triphosphate). ATP then serves as the energy currency in the cell, shuttling energy from molecule to molecule to drive cellular processes.
What does a negative Hf for molecule mean?
Energy was released when the molecule was formed from its elements
The transfer of energy from molecule to molecule is called?
conduction
