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The ArHº of which of the following reactions is the same as the AfHº for CH2OH(1)?...
Question 1 For which one of the following reactions is ASº negative? Not yet answered Marked out of 1.0 Select one: O a. 2 IBr(g) → 12(s) + Brz(1) P Flag question O b. 3 H2(g) + Fe2O3(s) → 2 Fe(s) + 3 H2O(g) O C. 2 NO2(g) → N2(g) + 2 O2(g) O d. C6H6(s) → C6H6(1) o e. (NH4)2CO3(s) → 2 NH3(g) + H2O(g) + CO2(g)
Which of the following reactions would be expected to have a positive entropy change. 4,5> 0? 1.2 SO2(g) + O2(g) → 2 SO3(g) 2. Ba(OH)2(5) - Bao(s) - H2O(g) 3. CO(g) - 2 H2(g) → CH3OH() Select one: a. 1 and 2 b. 1 and 3 c. 1 only d. 3 only e. 2 only ajo
Which one of the following reactions, when carried out at 25 °C and 101.3 kPa pressure, has an enthalpy change corresponding to the standard molar enthalpy of formation, ∆Hf°, of C2H5OH (l) ? A. C2H5OH (l) → 2 C (g) + 6 H (g) + O (g) B. C2H6 (g) + 1/2 O2 (g) → C2H5OH (l) C. 4 C (s) + 6 H2 (g) + O2 (g) → C2H5OH (l) D. C2H5OH (l) + 3 O2 (g) → 2 CO2...
For which one of the following reactions is ASº negative? Select one: O a. 3 H2(g) + Fe2O3(s) → 2 Fe(s) + 3 H2O(g) O b. (NH4)2CO3(s) + 2 NH3(g) + H2O(g) + CO2(g) O c. 2 NO2(g) → N2(g) + 2 O2(g) O d. 2 IBr(g) → Iz(s) + Brz(4) o e. CoH6(s) → CoH6()
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn = AH) at T = 298 K? O 2 Fe (s) + 1.5 O2() → Fe2O3(s) O N2(1) + 2 O2(1) ► N204(1) O CO(g) + 2H2(g) + CH3OH(1) O C(s, graphite) + H2(g) + O2(g) → C6H1206(s) O Cl2(g) + H2(g) →2 HCl(g) Question 4 1 pts A sample of 1.71 moles of a substance was burned in a constant pressure calorimeter. The...
Consider the following reaction: CO(g) + 2 H2(g) → CH2OH (9) AH = -90.7 kJ Calculate the amount of heat transferred when 107.3 g of CH2OH is synthesized by the above reaction at constant pressure. Select one: oa. -90.7 kJ ob. 9.732 x 102 kJ O C. 3.037 x 102 kJ O d. -3.037 x 102 kJ o e. 9.732 x 10 kJ Consider the following reaction: CO(g) + 2 H2 (g) → CH3OH (9) AH = -90.7 kJ For...
Redox reactions can be written as two half-reactions 1. Write half-reactions for the following balanced redox reactions. Identify which of the reactants is the oxidizing agent and which is the reducing agent. a. 2 Cd (s) + O2 (g) → 2Cdo (s) b. Mg (s) + HC,H,O2 (aq) → Mg(C2H2O2)2 (aq) + H2 (9) C. Pb (s) + 2Cl2 (g) → PbCl (s) d. Zn (s) + Pb(NO3)4 (aq) → Zn(NO3)2 (aq) + Pb (s) e. 2 Kl (aq) +...
In which of the following reactions do you expect to have the largest increase in entropy? Select one: O a. Hg(1) + S(s) HgS(s) O b. CuSO4(s) + 5H20(1) - CuSO4 H30(3) O c. Mn(s) + O2(g) – MnO2(s) o d 21F(g) - 12(g) + F2(@) e. Iz(s) — 12(g)
Please answer both questions. Thank you
For which of the following reactions is ASO > 0? a. 2 C2H6(g) +702(g) → 4 CO2(g) + 6 H2O(g) b. H2CO(g) + O2(g) → CO2(g) + H20(1) C. N2(g) + 3 H2(g) → 2 NH3(g) d. NH3(g) + HI(g) → NH41(s) QUESTION 5 For which of the following reactions is AS° at 25 °C closest to zero? a. N2(g) + O2(g) → 2 NO(g) b. H2(g) + 12(s) → 2 HI(g) c. CH3CHO(g)...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...