Which of the following describes the entropy changes in gas reactions?A.A decrease in the number of gas molecules results in an increase in entropy.B.An increase in the number of gas molecules results in an increase in entropy.C.The number of gas molecules involved in a reaction will not affect entropy.D.A decrease in the number of gas molecules results in the entropy going to zero.SUBMITarrow_backPREVIOUS

Consider the entropy change in the following chemical or physical processes:2 Na(s)  +  Cl2(g)  →  2 NaCl(s)N2(g)  +  3 H2(g)  →  2 NH3(g)H2O(s)  →  H2O(l)C10H22(l)  →  C10H22(s)2 Mg(s)  +  O2(g)  →    2 MgO(s)In which of these processes is entropy increased?Question 8Select one:Entropy is increased in # 3 only.Entropy is increased in #1, #4 and #5Entropy is increased in # 2 and # 3None. Entropy is decreased on all these processesEntropy is increased in all five processes

At what temperatures is a reaction that has a positive change in entropy spontaneous?A.At lower temperatures for endothermic reactionsB.At no temperatures for exothermic reactionsC.At all temperatures for exothermic reactionsD.At all temperatures for endothermic reactions

If the number of particles in a system decreases (while keeping the temperature and phase constant), how does the entropy generally change?Select one:a.The entropy becomes negative.b.The entropy decreases.c.The entropy remains unchanged.d.The entropy increases.

What does a change in the entropy of a system indicate?A.That the activation energy has changedB.That the disorder of the system has changedC.That the energy of the system has changedD.That the equilibrium position has changed

Which of the following reactions would have a decrease in entropy?A.2NH3(g) N2(g) + 3H2(g)B.2SO3(g) 2SO2(g) + O2(g)C.2H2O(g) 2H2(g) + O2(g)D.2NO2(g) N2O4(g)SUBMITarrow_backPREVIOUS