Predict whether the entropy change of the system in each of the following processes is positive or negative. (a) CaCO_(3)(s) to CaO(s)+CO_(2)(g) (b) N_(2)(g)+3H_(2)(g) to 2NH_(3)(g) (c ) N_(2)(g)+O_(2)(g) to 2NO(g) (d) HCl(g)+NH_(3)(g) to NH_(4)Cl(s) (e) 2SO_(2)(g)+O_(2)(g) to 2SO_(3)(g) (f) Cooling of N_(2)(g) from 20^(@)C to -50^(@)C

Predict whether the entropy change of the system in each of the follow

1.	Predict whether the entropy change of the system in each of the following processes is positive or negative. (a) CaCO_(3)(s) to CaO(s)+CO_(2)(g) (b) N_(2)(g)+3H_(2)(g) to 2NH_(3)(g) (c ) N_(2)(g)+O_(2)(g) to 2NO(g) (d) HCl(g)+NH_(3)(g) to NH_(4)Cl(s) (e) 2SO_(2)(g)+O_(2)(g) to 2SO_(3)(g) (f) Cooling of N_(2)(g) from 20^(@)C to -50^(@)C
Answer» Solution :GASEOUS substances generally POSSESS more ENTROPY than solids. So whenever the products CONTAIN more moles of a gas than the reactants, the entropy change is probably positive. And hence, DeltaS is (a) positive (B) negative (c ) small, the sign of DeltaS is impossible to predict (d) negative (e ) negative (f) negative