Without doing any calculations, determine the sign of ΔSsys and ΔSsurr for the process. Justify your reasoning. O2(g) + O(g) → O3(g)

Enter your answer in the provided box. Calculate the standard entropy change for the following reaction at 25°C:  3O2(g) → 2O3(g)   ΔSrxn =                 J/Kmol

3. Calculate the value of ΔSo for the formation of POCl3 from its constituent elements, as shown below. P2(g) + O2(g) + 3Cl2(g) → 2POCl3(g)

3. What change will increase the entropy of the system? Group of answer choices liquid to solid solid to gas gas to liquid gas to solid 2.ΔSsyst>0 for the following reaction: Group of answer choices A,  2NO (g) + O2(g) → 2NO2(g) B, HCl (g) + NH3(g) → NH4Cl (s) C, C3H8(g) + 5 O2(g) → 3CO2 (g) + 4 H2O (g) D, 2N2 (g) + 3H2(g) → 2NH3(g) E,  Pb2+(aq) + 2Cl-(aq) → PbCl2 (s)

Use the values of ΔHof  to calculate the ΔHo for the following reaction: 4 AB3(g) +  5 C2(g) → 4 AC(g) + 6 B2C(g) Substance ΔHof in kJ/mol AB3(g) 55.8 C2(g) 0 AC(g) 200.5 B2C(g) -65.5

A mixture of CO(g) and H2(g) is produced by passing steam over hot charcoal: H2O(g)+ C(s)->H2(g)+CO(g) Using the appropriate thermodynamic values in the table below, calculate the lowest temperature at which the reaction is spontaneous under standard conditions. Compound ΔGf (kJ/mol) ΔHf (kJ/mol) ΔHf (kJ/mol) H2O(g) –228.6 –241.8 188.8 H2O(ℓ) –237.2 –285.8 69.9 C(s) 0.0 0.0 5.7 H2(g) 0.0 0.0 130.6 CO(g) –137.2 –110.5 197.7 O2(g) 0.0 0.0 205.0 _____K

Nitric oxides, NONO and NO2NO2, contribute to air pollution, acid rain, and the depletion of the ozone layer. After NONO forms in the combustion chamber of an automobile engine, it reacts further with oxygen to form NO2NO2. The reaction is given by: 2NO(g)+O2(g)→2NO2(g). Calculate ΔS∘rxn for the reaction?   Entropy values given by following table SubstanceSubstance S∘ (J/mol⋅K)S∘ (J/mol⋅K) NO2NO2 240.0 O2O2 205.2 NONO 210.8

For the reaction below, determine the difference in relevant particles that allow for determination in the sign of ΔS0.  2 F e(Cl O4)3(a q) + 3 L i2C O3(a q) → F e2(C O3)3(s) + 6 L i Cl O4(a q)

Consider each of the following thermodynamic quantities, and give the appropriate sign of each as positive, negative, zero, or undetermined.  ΔHorxn for the combustion of a hydrocarbon. So for any element in its standard state at 1 atm and 298 K.   ΔHof for any element in its standard state at 1 atm and 298 K.  ΔSosystem for a spontaneous process.