Part B Part B Given the following thermodynamic data, calculate the lattice

energy of CaBr2(s).

Term

Value (kJ/mol)

?H?f[CaBr2(s)]

-675

?H?f[Ca(g)]

179

?H?f[Br(g)]

112

I1(Ca)

590.

I2(Ca)

1145

-E(Br)

-325

Term

Value (kJ/mol)

?H?f[CaBr2(s)]

-675

?H?f[Ca(g)]

179

?H?f[Br(g)]

112

I1(Ca)

590.

I2(Ca)

1145

-E(Br)

-325

Term

Value (kJ/mol)

Term Value (kJ/mol)

?H?f[CaBr2(s)]

-675

?H?f[CaBr2(s)] H -675

?H?f[Ca(g)]

179

?H?f[Ca(g)] H 179

?H?f[Br(g)]

112

?H?f[Br(g)] H 112

I1(Ca)

590.

I1(Ca) I 590.

I2(Ca)

1145

I2(Ca) I 1145

-E(Br)

-325

-E(Br) E -325 Express your answer in kilojoules per mole using four

significant figures. Can you give me the step by step process because i’m still

confused on how to solve this kind of problem.

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