Calculate the enthalpy for this reaction:2C(s) + H2(g) ---> C2H2(g)AH° = ??? kJGiven the following thermochemical equations:C₂H2(g) + (5/2)02(g) ---> 2CO2(g) + H2O(l)AH° = -1299.5 kJC(s) + O2(g) -> CO₂(g)H2(g) +(1/2)02(g) ---> H₂O(l)AH° = -393.5 kJAH° = -285.8 kJ+226 kJ+1572 kJ○ -226 kJ-787 kJ

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Answered: Calculate the enthalpy for this…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Use the standard reaction enthalpies given below to determine Hᵒrxn for the following reaction: Given: 2 NO(g) + O2(g) → 2 NO2(g) N2(g) + O2(g) → 2 NO(g) 1/2N2(g) + O2(g) → NO2(g) -150. KJ -117 kJ -333 kJ +115 kJ +238 kJ AH°, rxn AHᵒr = ? rxn +183 kJ AH°rxn = +33 kJ
In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the following thermochemical equations, Fe,O3() + 3CO(g). 2Fe(s) + 3CO,(g) AH° =-28 kJ 3Fe,O3(6) + CO(g) 2Fe,O4() + CO,(g) AH° = -59 kJ FezO,(s) + CO(g)- 3FcO(s) + CO,(g) AH° = +38 kJ The AH;° for the reaction FeO(s) + CO(g)- Fe(s)+ CO2(g) is -16.8 kJ. Use this data and the data in the following table to calculate the value of AH;° for FeO. Standard Enthalpies of Formation of Typical Substances Substance H,O,() HBr(g) AH? (NI mol-") AH7 (kI mol-1) AH; (KI mol-") AH (KI mol-1) Substance substance substance Ag(s) -187.6 CH() -84.667 NO(g) 90.37 AgBr() - 100.4 -36 CH,OH) -277.63 NO:(g) 33.8 - 127.0 HCI(g) -92.30 Ca(s) N,0(g) 81.57 AlG) HI(g) 26.6 CaBrzG) -682.8 9.67 Al,O,() -1669.8 HNO,() -173.2 CaCO,(s) -1207 N,O,(g) 11 C6) (graphite) H,SO) -811.32 CaCl,() -795.0 Na(s) HC,H,0,() NaHCO,() Na,CO,() NaCI() -110.5 -487.0 -635.5 -947.7 CO,() CH(g) CH,C(g) CHI(g)…
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Using Hess's Law, determine AHf ° for CH4 based on the following reactions. It is known that when methane combustion takes place, 802.37 kJ / mol of heat is released Cgrafito + 2H2 CH4(g) CH4(9) + 202(9) CO29) + 2H2O) A¢H°= -802.37 kJ/mol Cgrafito + O2(g) CO2(g) A:H°= -393.5 kJ/mol 2H2(9) + O2(9) 2H2O(9) A¡H°= -241.83 kJ/mol
The value of AH° for the reaction below is 128.1 kJ CH,OH -Co, + 2H (1) 2(g) 2(g) How may kJ of heat are consumed when 10.1 g of H2(g) is formed as shown in the equation? Given that the atomic mass of C = 12.01 g/mol, H = 1.008 g/mol, O = 16.00 g/mol Show your answers in TWO (2) decimal places. Do not include the units in your final answers.
Use the standard reaction enthalpies given below to determine AH° rxn 4 SO3(g) →4 S(s) + 602(g) AH°rxn = ? Given: SO2(g) →S(s) + O2(8) 25O2(g) + O2(g) →2SO3(g) 1583 kJ -494.6 kJ -791.4 kJ -293.0 kJ -692.4 kJ AH rxn = +296.8 kJ ΔΗ°, rxn = -197.8 kJ for the following reaction
In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the following thermochemical equations, Fe,O3(s) + 3CO(g) 2Fe(s) + 3CO,(g) AH° = - 28 kJ 3Fc,O3() + CO(g) 2Fe3O4() + CO,(g) AH = -59 kJ FezO4(s) + CO(g) 3FcO(s) + CO,(g) AH° = +38 kJ to calculate AH° for the reaction FeO() + CO(g) Fe(s) + CO2(g) AH° = i kJ
Thermochemistry and Stoichiometry
Given: 4AICI3(s) + 302(g) → 2Al,O3(s) + 6C12(g); AH=-529.0 kJ determine AH for the following thermochemical equation. Cl,(3) + Al,O;(s) → AICI,(9) + 02(g) O +88.2 kJ O +264.5 kJ O +176.3 kJ O -176.3 kJ O +529.0 kJ
Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: Given: S(s) + 3/2 O2(g) → SO3(g) SO ₂(g) →S(s) + O₂(g) 2 SO2(g) + O2(g) → 2 SO3(g) AHᵒrn = ? AHᵒrn = +297 kJ AH rxn-198 kJ
Consider the reaction: 3N2O(g) + 2NH3(g) --> 4N2(g) + 3H20(g) ∆H°rxn= -879.6 KiloJoules. What is the standard enthalpy of formation for N2O(g) given that the standard enthalpy of formation for NH3(g) and H2O(a) is - 45.9 KJoules/mole and - 241 .8 KJoules/mole respectively. [NOTE: Express answer in the NEAREST WHOLE NUMBER.)
Given the following thermochemical equations, find ΔH° for the following reaction: 2NH3(g) + 2O2(g) ⟶ N2O(g) + 3H2O(l) ΔH˚ = ? 2NH3(g) + 4SO3(g) ⟶ N2O(g) + 4SO2(g) + 3H2O(l) ΔH˚ = -290 kJ 2SO3(g) ⟶ 2SO2(g) + O2(g) ΔH˚ = 197 kJ

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