a) H2(g)→ 2H(g) b) N2 (g. 1 atm) → N, (g, 8 atm) C) 2SO3(g) → 2SO,(g) + O2(g) d) C (Diamond) → C (Graphite)

Endothermic reactions are more likely to be spontaneous. O True O False

Which is true for the following reaction: N₂(g) + 3H₂(g) 2NH3(g) + heat for the reverse reaction, AH is negative. For the reverse reaction, AS is negative. Enthalpy favors the reactants. Entropy favors the reactants. O

TRUE OR FALSE The spontaneous process proceeds on its own without any outside assistance.

Which pure substance under standard conditions would have the highest entropy?   O2   HCl   CH3OH   S

Read the descriptions of physical or chemical changes in the table below. Then decide whether the change will be spontaneous, if you can. Change Two liquids mix, neither absorbing nor releasing heat. During an endothermic chemical reaction, a gas is consumed and a liquid produced. An endothermic chemical reaction between two liquids results in gaseous products. Is this change spontaneous? Yes. O No. O Can't decide with information given. Yes. O No. O Can't decide with information given. O Yes. O No. O Can't decide with information given.