Consider the reaction: 2H202(1) 2H20(1) + 02(g) Using standard thermodynamic data at 298K, calculate the free energy change when 2.37 moles of H202(1) react at standard conditions. AG°rxn kJ Retry Entire Group 9 more group attempts remaining Submit Answer

Entropy Example: If AS°¸ =-198.3 J/K, is the reaction spontaneous at 25°C sys N2 + 3H2 → 2NH3 • AS univ = AS sys + AS surr > ? • AS surr =-(AHsys)/T Determine the AHrxn • AH˚4 N2(g) = 0 kJ/mol f • AH°+ H2(g) = 0 kJ/mol f • AH° NH 3(g) = -46.19 kJ/mol f

Consider the reaction: I2(g) + Cl2(g) 2ICI(g) Using standard thermodynamic data at 298K, calculate the free energy change when 2.030 moles of I2(g) react at standard conditions. AG°rxn = kJ Submit Answer Retry Entire Group 9 more group attempts remaining

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The reaction 2 C4H10(g) + 13O2(g) - has AG° = -5407 kJ. Determine the value of AG°, for C4H10(8). 8 CO2lg) + 10 H20(g) Standard Free Energies of Formation of Typical Substances at 298.15 K TABLE 18.2 Substance Substance Substance AG? (kJ mol ') AG? (kJ mol-") AG? (kJ mol ) Agt) CaO6) -604.2 K,SO,G) -1316.4 AgC6) -109.7 Ca(OH),() -896.76 N,() Al() 0.00 CaSO) NH,(g) NH.CI() -1320.3 -16.7 ALĻO,6) C) (graphite) COO Co,( -1576.4 CaSO, H,OG) -1435.2 - 203.9 CaSO,2H,0G) -1795.7 NO(g) + 86.69 NO,(g) N,O) N,0, -137.3 +51.84 -394.4 Fe() +103.6 CH( -50.79 Fe,O,6) -741.0 +98.28 CH,A(g) -58.6 Na() CH,OH() -166.2 H,0(g) -228.6 Na,CO,() -1048 CO(NH)l) -197.2 -237.2 NaHCO,6) -851.9 CO(NH)(ag) C,H,(g -203.8 HCI -95.27 NaC) -384.0 +209 HNO,) -79.91 NaOH) -382 +68.12 H,SO() -689.9 Na,SO.) -1266.8 HC,H,0,(/) Hg(/) Hg(g) -32.9 -392.5 C,H,OH() -174.8 PbO) -189.3 +17.3 +31.8 Ca(o) K() SO;(g) -300.4 Ca00,() -1128.8 KCI) -408.3 -370.4 CaC,6) -750.2 i kJ e Textbook and Media Choose the value of K, for the…

Consider the reaction H,(g) + F2(g) 2HF(g) Use the standard thermodynamic data in the tables linked above. Calculate AG for this reaction at 298.15K if the pressure of HF(g) is reduced to 20.42 mm Hg, while the pressures of H,(g) and F,(g) remain at 1 atm. ANSWER: kJ/mol Submit Answer Retry Entire Group No more group attempts remain Previous Next Save and Exit Cengage Learning | Cengage Technical Support OPEN FILES MacBook Air EZ F8 F9 F10 F1 FI

Calculate the AS°rxn of the following reaction at 223°C and standard pressure. 1st attempt O See Hint C,H,(8) + 30,(g) . 200,(g) + 2H,0(g) AH°f, kJ/mol S°, J/mol K AG°F, kJ/mol C2H4(g) 52.3 219.5 68.1 O2(g) 205.0 CO2(g) -393.5 213.6 -394.4 H20(g) -241.8 188.7 -228.6 J/mol K

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ab Lock Fn 50 Esc Why is the exothermic reaction below spontaneous at all temperatures? Select the correct answer below: O Because AH is positive and AS is positive. Because AH is negative and AS is positive. O Because AH is negative and AS is negative. O Because AH is positive and AS is negative. 1 ! F1 A N F2 8 2 W S X Alt F3 3 E D F4 C $ TiCl4 (9) + 2H₂O(g) → TiO2 (s) + 4HCI(g) पं F5 R F % 5 V F6 T G < 6 F7 B DELL H F8 7 N F9 *00 M F10 5 2 F11 Alt 3 F12 P PrtScr "R Ctrl { [ ? Ins Pa U

Thermodynamics For Practice 18.6 Enhanced - with Feedback Part A Consider the oxidation of SO2 to SO3 : SO2(g)+,O2(g)→SO3(9) Calculate AGxn at 25° C. IXI Express your answer with the appropriate units. ΔΗ (kJ/mol) Reactant or S° product (J/mol · K) SO2 -296.8 248.2 O2 205.2 SO3 -395.7 256.8 AGn Value Units You may want to reference (Pages 820 - 826) Section 18.8 while completing this problem.