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So in this video, we are looking at how to calculate for the largest energy of an ionic compound.
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And the compound we are talking about is calcium bromide in this particular question.
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So what is largest energy? it is the energy released, right? when an ionic solid falls from its ions.
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So if it's released, it should be exothermic, negative.
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And in this question, we will use the born heber cycle, the bond heber cycle.
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So how is this compound? calcium bromide formed from its ions.
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So the elements calcium solid and brumin liquid, we need to have the gaseous ions of the nutrients.
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Elements.
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So first of all, calcium solid must be changed into, it must be changed into gas, to form calcium gas, all right? and the entropy, the energy for this one is the entropy of sublimation because it changed from solid to gas.
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Then calcium, the charge of calcium, calcium is 2 plus, it means it loses two electrons, right? so we need to remove two electrons.
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So the first electron will be removed, which is the first ionization energy.
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So first ionization energy to form calcium plus.
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Then the second electron is removed, and the energy is second to form calcium 2 plus gas.
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Then the bromine liquid must be vaporized, right? the bromine liquid must be vaporized to form bromine gas.
02:59
And the energy for that one is standard end up pure vaporization.
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Okay.
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Then we need to break the atoms of bromine.
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To the three gaseous atoms.
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And we need to break them to form bromine atom.
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All right.
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And the energy is bound in this situation, energy, we break the pounds to form that.
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Then we need to add electrons.
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Now we have two bromine atoms in the compounds, so it means that you're adding, to bromine, we are adding two electrons to the bromine atoms to form, okay, form two of this...