Born - Haber Cycle Questions Energy Change In The Formation Of Ionic Compounds Page 2
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2
3
4–
5. In the Born
Haber cycle for RbCl(s), which of the following processes corresponds to
the first ionization energy of Rb?
–
A) Rb(g) Rb
+
(g) + e
–
(g) RbCl(s)
+
B) Rb
(g) + Cl
–
Rb(g)
+
C) Rb
(g) + e
D) Rb(s) Rb(g)
–
–
(g) Rb(g) + e
E)
Rb
–
6. In the Born
Haber cycle for NaCl(s), which of the following processes corresponds to
the enthalpy of formation of NaCl(s)?
(g) NaCl(g)
A) Na(g) + Cl
2
(g) NaCl(s)
B) Na(s) + ½Cl
2
C) NaCl(aq) NaCl(s)
D) NaCl(g) NaCl(s)
–
(aq) NaCl(s)
+
E)
Na
(aq) + Cl
–
7. In the Born
Haber cycle for KBr(s), which of the following processes corresponds to
the electron affinity of Br?
–
A) Br(g) Br
+
(g) + e
–
B) KBr(s) K
+
(g) + Br
(g)
(g) 2Br(g)
C) Br
2
–
–
(g) Br(g) + e
D) Br
–
–
Br
E)
Br(g) + e
(g)
8. Which of the following processes is not exothermic?
–
Cs(g)
+
A) Cs
(g) + e
–
–
I
B) I(g) + e
(g)
–
(g) CsI(s)
+
C) Cs
(g) + I
D) Cs(g) Cs(s)
(g) I(g)
E)
½I
2
Page 2
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