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Lattice energy.
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A question is based on lattice energy, the compound that possess lowest lattice energy.
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It is defined as the amount of energy needed to convert solid species into gaseous condition.
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It is known as lattice energy and it depends on charge and distance.
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Gaseous condition and it depends on the charge required or the charge present on the atoms in the compound and the distance between the ionic constituents.
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Now let us consider the lattice energy the compounds mentioned to check for the lattice energy least one.
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As we know lattice energy will be increased.
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I am using upper arrow as the product of charge present on the ion increases.
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So this is because of the electrostatic forces of attraction between the atoms will also be increased.
01:31
The electrostatic forces of attraction also increases.
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Now let us consider one by one saying that lattice energy will be increased as the distance between ions decreases because of this binding force will be increased.
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Binding force will be increased.
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So with this explanation, first compound is sodium chloride.
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The product of the charge present on ion is 1.
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Next compound is naf.
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The product of the charge present on the ion c's 1.
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The other compound is vacl 2...