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- Calculate rS for the following reaction at 25 C. 2 H2(g) + O2(g) 2 H2O() (a) 326.6 J/K mol-rxn (b) 139.9 J/K mol-rxn (c) 139.9 J/K mol-rxn (d) 326.6 J/K mol-rxnC+½ 020l co CO (s) 2 (g) CO+ 2 02(a) (g) AH = - 111 kJ %3D CO, 2 (g) Is this reaction endothermic or exothermic? (g) AH = - 394 kJ %3D -11 K3+(-394 C6st O2 (9)-yCO26) AH=-505 KJ Exothermic 2. a) Explain how AT would be affected if a greater amount of surrounding solvent (water) is used, assuming the mass of salt remains constant? b) Explain how qien would be affected if a greater amount of surrounding solvent (water) is used? Explain. If the following enthalpies are known: AH = - 95KJ 2 C+D A+2B- C) AH = + 50kJ B+XFind DG° for this reaction: CH4 (g) + 2O2(g)+ ---> CO2 (g)+ 2H2O (l) Substance DGfdegree (kJ/mol) CH4(g) -50.66 O2(g) 0 CO2(g) -394.4 H2O(l) -237.4 A –682.5 kJ B 131.1 kJ C –581.1 kJ D -919.9 kJ E -818.5 kJ
- What is AG rxn for the following reaction? 3NO2(g) + H₂O() → 2HNO3() + NO(g) Substance AGf (kJ/mol) H₂O(1) HNO3(1) NO(g) NO2(g) -237.2 -79.9 86.7 51.8Solve for AH°, AS°, AG° Base on the following data on the table below then identify wether the reaction is at spontaneous or standard condition.Following are the steps in the industrial synthesis of glycerin. Cl, A (C3H;CI) Cl,, H,O NaOH, H,O CH,=CHCH, B (CgH,O) heat Propene ОН C (C,H,CIO,) Ca(OH)2, D (C3H6O2) H,O, HCI НОСН,CHCH,ОН heat 1,2,3-Propanetriol (glycerol, glycerin) Provide structures for all intermediate compounds (A-D) and describe the type of mechanism by which each is formed.
- Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) Given the information in the table, calculate AH° for the reaction. Compound SO₂ (g) SO₂ (g) NHs (9) NO (g) H₂O (g) AHf³ (kJ/mol) -396 -297 -46 90.4 -241.8 ap here or pull up for additional resources Sfº (J/mol.K) 256 248 192.5 210.6 188.7 1 4 7 +/- 2 LO 5 8 kJ/mol 369 O XC x 100Compound SO; (g) SO₂ (g) NH3 (g) NO (g) H₂O (9) Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH³(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) Given the information in the table, calculate AH° for the reaction. AHf (kJ/mol) -396 -297 -46 90.4 -241.8 Sf (J/mol-K) 256 248 192.5 210.6 188.7The conversion of glucose (C,H12O6) into lactic acid (2CH3CH(OH)COOH) drives the phosphorylation of 2 moles of ADP to ATP and has a AG° = -135 kJ/mol. CH,0,(aq) + 2HPO? (aq) + 2ADP³3- (aq) +2H*(aq) –→ 2CH,CH(OH)COOH(aq) +2ATPª¯(ag) + 2H,0(1) The conversion of ATP to ADP has a AG° = -30.5 kJ/mol. ATP4 (ag)+H,0(1) –→ ADP³-(aq) + HPO? (aq) + H*(aq) 1st attempt See Periodic Tabl O See Hint What is AG° for the conversion of glucose into lactic acid? CH1206(aq) → 2CH,CH(OH)COOH(aq) A SUBMIT ANSWER
- 5. Calculate the AHn for the following reaction: → CO₂ (g) → SO₂ (g) Target: C(s) + O₂(g) S (s) + O₂(g) CS₂(1) + 302 (g) →2SO₂ (gs) + CO₂(g) 2 S(s) + C(s) → CS₂ (1) AH-393.5 kJ ΔΗ = -296.8 kJ AH-1103.9 kJ AHxn= ? kJFind DH°, for the reaction rxn 2Na(s) + 2H20(1) ® 2NAOH(aq) + 2H2(g). (DH°; (NaOH(aq)) = -426.8 kJ/mol; DH°F (H20(1)) = -285.5 kJ/mol) -568.1 kJ/mol -285.5 kJ/mol -282.6 kJ/mol )-1424.6 kJ/molCalculate AG for the reaction 3NO₂(g) + H₂O(l) --> 2HNO3(1) + NO(g). AG (kJ/mol) -237.2 -79.9 86.7 51.8 H₂O(1) HNO3(1) NO(g) NO₂(g) Answer to the nearest 0.1 kj/mol Answer: