For the following data calculate lattice energy of ABs- As- A-g-e-610 kJ-mol Bs-e- B-g-260 kJ-mol As-Bg- ABs-569 kJ-mol

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Heat of Reaction

For the follo...

Question

For the following data calculate lattice energy of $A B (s)$ ?
$A (s) \to A^{+} (g) + e - 610 k J / m o l$
$B (s) + e \to B^{-} (g) + - 260 k J / m o l$
$A (s) + B (g) \to A B (s) - - 569 k J / m o l$

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A (s) \to A^{+} (g) + e

B_{2} (g) + e \to B^{-} (g)

A (s) + B_{2} (g) \to A B_{(} s)

A B_{(} s)

A (s) \to A (g) + e

610 k J m o l^{- 1}

B (g) + e \to B (g);

- 260 k J m o l^{- 1}

A (s) + B (g) \to A B (s);

- 569 k J m o l^{- 1}

O^{-} (g) + e^{-} (g) \to O^{2 -} (g)

M g (s) = 147.7 k J / m o l

M g (g)

M g^{2 +} (g) = 2189 k J / m o l

O_{2}

= 498.4 k J / m o l

O (g) = - 141 k J / m o l

M g O (s) = - 601.7 k J / m o l

M g O = - 3791 k J / m o l

O^{-} (g) + e^{-} (g) \to O^{2 -} (g)

M g (s) = 147.7 kJ/mol

M g (g)

M g^{2 +} (g) = 2189 kJ/mol

O_{2}

= 498.4 kJ/mol

O (g) = - 141 kJ/mol

M g O (s) = - 601.7 kJ/mol

M g O = - 3791 kJ/mol

M g F_{2}

M g (s) \to M g (g) = 146.4 k J m o l^{- 1}

F_{2} (g) \to 2 F (g) = 155.8 k J m o l^{- 1}

M g (g) \to M g^{2 +} (g) = 2186 k J m o l^{- 1}

2 F \to 2 F^{- 1} = 2 \times - 322.6 = - 645.2 k J m o l^{- 1}

M g F_{2} = - 2922.5 k J m o l^{- 1}

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