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Part 2 Your answer is incorrect. Use the values from the given table and the equation you chose in Part 1 to find the overall change in enthalpy for the reaction. i -7.950E1 Hint

Part 2 Your answer is incorrect. Use the values from the given table and the equation you chose in Part 1 to find the overall change in enthalpy for the reaction. i -7.950E1 Hint

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section18.5: Entropy Changes And Spontaneity
Problem 2RC
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Part 2 Your answer is incorrect. Use the values from the given table and the equation you chose in Part 1 to find the overall change in enthalpy for the reaction. i -7.950E1 Hint Save for Later Last saved 1 hour ago. Attempts: 1 of 3 used Submit Answer Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes.
Transcribed Image Text:Part 2 Your answer is incorrect. Use the values from the given table and the equation you chose in Part 1 to find the overall change in enthalpy for the reaction. i -7.950E1 Hint Save for Later Last saved 1 hour ago. Attempts: 1 of 3 used Submit Answer Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes.
Using the data in the table below, calculate AH° in kilojoules for the following reactions. Standard Enthalpies of Formation of Typical Substances Substance AH: (KI mol-) Substance AH (KI mol-1) Substance AH; (KI mol-) Substance AH (k) mol-1) NO(g) Ag(s) AgBr() -187.6 CH(g) -84.667 90.37 -100.4 HBr(g) -36 CH,OH() -277.63 NO:(g) 33.8 AgCl(s) - 127.0 HCI(g) Ca(s) N,0(g) N2Og) N;O(g) -92.30 81.57 AlG) -682.8 HI(g) HNO,() 26.6 CaBr,() 9.67 - 1669.8 Al,O,() C) (graphite) CaCO,() CaCl() -173.2 - 1207 11 H,SO,) -811.32 -795.0 Na(s) CO(g) -110.5 HC,H,0,) -487.0 -635.5 NaHCO,() -947.7 CO:(g) -393.5 Ca(OH),G) Na,CO,() Hg(/) Hg(g) -986.59 -1131 - 1432.7 - 1575.2 CH(g) -74.848 60.84 CaSO() NaCI(s) -411.0 CH,CI(g) CHI(g) CH,OH() CaSO,H,0() CaSO, 2H,0G) -82.0 NaOH() -426.8 14.2 K(s) - 2021.1 Na,SO,G) - 1384.5 -238.6 KCI(s) -435.89 Ch(g) O:(g) CO(NH,),() (urea) -333.19 K,SO,() -1433.7 Fe(s) Pb(s) CO(NH),(ag) -391.2 N2(g) Fe,O,6) -822.2 -219.2 CH(g) 226.75 NH,(g) -46.19 SG) H;(g) H,O(g) C,H.(g) 52.284 NH,CI() -315.4 -241.8 SO,() -296.9 H,O() -285.9 so,(g) -395.2 (a) 2H2O2(1) 2H20(1) + O2(g) (b) HCI(g) + NaOH(s) NaCI(s) + H2O(1) Part 1 Your answer is correct. For reaction (a) 2H2O2(1) 2H20(1) + O2(3), what is the equation for the change in enthalpy of this reaction? [AH;°(O2(s)] - [AHf°(H2O2(1)) + AH;°(H20(1)] [2ΔΗ(Hο() + ΔΗ?(Ο,9)] - [2ΔΗ' (H2O,()] [AH;°(H2O2(1)) + AH;°(H2O(1) - [AH;°(O2(3)] [2AH;°(H2O2(1))] - [2AH;°(H20(1)) + AHF°(O2(g))]
Transcribed Image Text:Using the data in the table below, calculate AH° in kilojoules for the following reactions. Standard Enthalpies of Formation of Typical Substances Substance AH: (KI mol-) Substance AH (KI mol-1) Substance AH; (KI mol-) Substance AH (k) mol-1) NO(g) Ag(s) AgBr() -187.6 CH(g) -84.667 90.37 -100.4 HBr(g) -36 CH,OH() -277.63 NO:(g) 33.8 AgCl(s) - 127.0 HCI(g) Ca(s) N,0(g) N2Og) N;O(g) -92.30 81.57 AlG) -682.8 HI(g) HNO,() 26.6 CaBr,() 9.67 - 1669.8 Al,O,() C) (graphite) CaCO,() CaCl() -173.2 - 1207 11 H,SO,) -811.32 -795.0 Na(s) CO(g) -110.5 HC,H,0,) -487.0 -635.5 NaHCO,() -947.7 CO:(g) -393.5 Ca(OH),G) Na,CO,() Hg(/) Hg(g) -986.59 -1131 - 1432.7 - 1575.2 CH(g) -74.848 60.84 CaSO() NaCI(s) -411.0 CH,CI(g) CHI(g) CH,OH() CaSO,H,0() CaSO, 2H,0G) -82.0 NaOH() -426.8 14.2 K(s) - 2021.1 Na,SO,G) - 1384.5 -238.6 KCI(s) -435.89 Ch(g) O:(g) CO(NH,),() (urea) -333.19 K,SO,() -1433.7 Fe(s) Pb(s) CO(NH),(ag) -391.2 N2(g) Fe,O,6) -822.2 -219.2 CH(g) 226.75 NH,(g) -46.19 SG) H;(g) H,O(g) C,H.(g) 52.284 NH,CI() -315.4 -241.8 SO,() -296.9 H,O() -285.9 so,(g) -395.2 (a) 2H2O2(1) 2H20(1) + O2(g) (b) HCI(g) + NaOH(s) NaCI(s) + H2O(1) Part 1 Your answer is correct. For reaction (a) 2H2O2(1) 2H20(1) + O2(3), what is the equation for the change in enthalpy of this reaction? [AH;°(O2(s)] - [AHf°(H2O2(1)) + AH;°(H20(1)] [2ΔΗ(Hο() + ΔΗ?(Ο,9)] - [2ΔΗ' (H2O,()] [AH;°(H2O2(1)) + AH;°(H2O(1) - [AH;°(O2(3)] [2AH;°(H2O2(1))] - [2AH;°(H20(1)) + AHF°(O2(g))]
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