Consider the following reactions. Which do you predict will occur most rapidly at room conditions? Slowest?

Consider the following reactions. Which do you predict will occur most rapidly at room conditions? Slowest?

a)

C2H6 (g) + O2 (g) → 2 CO2 (g) + 3 H2O(g)

b) Fe(s) + O2 (g) → Fe2O3 (s)

c) H2O(l) + CO2 (g) → H2CO3 (g)

d) 2 Fe3+(aq) + Sn2+(aq) → 2 Fe2+(aq) + Sn4+(aq)