CHEMISTRY HELP!Predict whether the entropy change is positive or negative

K

Kimberly

New member
for each of the following reactions.? Please give reasons for your predictions.
(a) 2KClO4 (s) 2KClO3(s) + O2 (g):
(b) H2O(g) H2O(l):
(c) 2Na(s) + 2H2O(l) 2NaOH(aq) + H2

QUESTION 2
Calculate G° for the following reactions at 25°C
(a) 2Mg(s) + O2(g) 2MgO(s)
(b) 2SO2(g) + O2(g) 2SO3(g)
(c) 2C2H6(g) + 7O2(g) 4CO2(g) + 6H20(l)

QUESTION 3
Consider the following reaction at 25°C:
Fe(OH)2(s) Fe2+(aq) +2OH(aq)
Calculate °G for the reaction. Ksp for Fe(OH)2 is 1.6 x 10-14
 
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