Without doing any calculations, determine the sign of ΔSsys for each of the following chemical reactions. which is ΔSsys greater than 0 and which is ΔSsys smaller than 0.
a) 2H3O^+ (aq) + CO3^2- (aq) --> CO2 (g) + 3H2O (l)
b) CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (l)
c) PCl3 (l) + Cl2 (g) --> PCl5 (s)
d) SO3 (g) + H2O (l) --> H2SO4 (l)
