Predict the sign and find the value of
\Delta S_(rxn)
for each of the following reactions. (
6pts,2
pts each) a.
3NO_(2)(g)+H_(2)O(l)->2HNO_(3)(l)+NO(g)
b.
N_(2)(g)+3F_(2)(g)->2NF_(3)(g)
c.
P_(4)(s)+5O_(2)(g)->P_(4)O_(10)(s)