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)