1) Calculate the equilibrium constant at 298K for the reaction 

     CaCO3(s) --> CaO(s) + CO2(g)              delta G0 = -254.8 KJ

a) 4.61        b) 4.61*10^44        c) 1.02*10^2          d) None of the above

2)  Which of the following reactions has the smallest value of delta S at 25 degree Celsius?

a) C6H6(s) --> C6H6(l)

b) C6H6(l) + Br2(l) --> C6H5Br(l) + HBr(g)

c) C6H6(s) --> C6H6(g)

d) C6H6(l) + 15/2 O2(g) ---> 6CO2(g) + 3H2O(g)

e) C6H6(l) + 9/2 O2(g) ---> 6CO(g) + 3H2O(g)

3)  What is the shorthand notation that represents the following galvanic cell reaction?

     2 Fe2+(aq) + F2(g) ---> 2Fe3+(aq) + 2F-(aq)

   a) Pt(s) | Fe3+(aq), Fe2+(aq), F2(g) || F-(aq)|C(s)

   b) Fe2+(aq) | Fe3+(aq) || F2(g) | F-(aq)

   c) Pt(s) | Fe2+(aq), Fe3+(aq) || F2(g) | F-(aq) | C(s)

   d) Fe(s) | Fe2+(aq) || Fe3+(aq) F2(g) | F-(aq) | C(s)