Question

The reaction below proceeds spontaneously at 298 K. NH3(g) +Cl2(g)NH4Cl(s) What is the sign of the entropy change (triangle) S                                                                              S is negative because the product is less random than the reactants. S is negative because the reactants are less random than the product.

S is positive because the product is less random than the reactants. S is positive because the reactants are less random than the product.

Answer 1

the answer is definitely A

Answer 2

In the reaction NH3(g) +Cl2(g) --> NH4Cl(s) which occurs at 298 K, the delta S is negative because the reaction occurred spontaneously and the product is less random than the reactants. Since the product is solid and the reactants are gases.