Determine ΔH for the reaction 2CH4 --> 2H2 + C2H4 Given these data: CH4 + 2O2 --> CO2 + 2H2O      H = -891kJ C2H4 + 3O2 --> 2CO2 + 2H2O  H = -1,411 kJ 2H2 + O2 --> 2H2O                    H = -571 kJ

Q: d)The ΔH°f of Ar(g) is   1.positive. 2.negative. 3.zero. 4.must be determined experimentally.…

A: The ΔH°f of Ar(g) is 1.positive. 2.negative. 3.zero. 4.must be determined experimentally

Q: Consider the following system at equilibrium where AH° = -87.9 kJ, and Kc PC13 (9) + Cl₂ (9) ⇒ PC15…

A: Answer:When QC=KC, system is at equilibrium.When QC<KC, system is not at equilibrium and in order…

Q: Consider the following reactions: 3C(s) +4H,(g)→C;H,(g) AH° =-103.8kJ C(s) +0,(g)→ CO,(g) AH'…

A: Hess’s law- Change in enthalpy for a reaction is independent on path or steps followed by reaction.…

Q: 7. When determining the energy of a reaction where 0.250 mol of a substance with a ΔΗ. = -2250.0…

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Q: How much energy is transferred by 1 mol of 02(g) reacting in the equation below? C6) + ½ O2e) → CO),…

A: In this,half mole of oxygen react to release 110.5kj/mol of energy then when half mole of oxygen…

Q: Given the standard heats of formation for the following compounds, calculate AH of the reaction at…

A: Given:  Balanced equation: 2ZnS(s)+3O2(g)→2ZnO(s)+2SO2(g) ∆Hof(ZnS)=-205.6 kJ/mol∆Hof(O2)=0…

Q: How much energy is released when 30.0g of water are formed in the reaction below? 2H2(g) + O2(2) →…

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Q: Use the information provided to determine AH°rxn for the following reaction: 3 Fe203(s) + CO(3) → 2…

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Q: Determine AG for the following reaction: CO₂(g) + 2H₂O(1) CH4(g) + 202(g) Substance AG(kJ/mol)…

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Q: 3. Calculate AH for the formation of one mole of N,O, from the elements at 25°C using the following…

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Q: 2CO2(g) + H2O(l) --> C2H2(g) + 5/2O2(g)  = 1300.0 kJ H2(g) + 1/2O2(g) --> H2O(l)  = -286.0 kJ CO2(g)…

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Q: Consider the following generic reaction: A+2B→C+3DA+2B→C+3D, with ΔH = 148 kJkJ . Determine the…

A: Answer:Properties that depend on the quantity of system are called as extensive properties. These…

Q: 6. Calculate AG for the combustion of propane. C3H8(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) C3H8(g) -24.5…

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Q: Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction:

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Q: Calculate ΔH for the following reaction: PCl3 (l) +  Cl2 (g)  → PCl5 (s) given the following: 1)…

A: Reverse of first reaction and and it will second equation and divide by 2 equation so we can that…

Q: A reaction produces a value for ΔSuniv of -2,700 J/K at 295 K.     spontaneous…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: Determine AG for C, H1, () +0,(g) 5 4CO,(g) + SH,0(g) given the following information: Substance AG;…

A: Answer: option a. -2,705 kJ is the value of ∆Grxn for the given reaction.

Q: Calculate the standard molar enthalpy of formation of NO(g) (in KJ) from the following data:…

A: Molar enthalpy of formation is defined as the enthalpy of formation of 1 mole of product in its…

Q: N2 (g) + 3H2 (g)  2NH3 (g) ΔrS = - 201 J K−1mol−1 ΔrH = - 99.3 kJ mol-1 d)    A gas mixture of…

A: The balanced equation is: N2(g) + 3H2(g) ⇌ 2NH3(g)  ∆rS = - 201 J.mol-1.K-1 or - 0.201 kJ.mol-1.K-1…

Q: Consider the reaction NH3(g) + HCI(g) NHẠCI(s) --> Given the following table of thermodynamic data:…

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Q: A reaction has the following thermochemical values at 263.15 K: ΔH = -196.8 kJ mol-1 ΔS = -168.7 J…

A: Given for a reaction  delta H = -196.8 KJ mol-1  delta S = -168.7 JK-1 mol-1 Temperature  = 263.15 K…

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

A: For an exothermic reaction, the change in enthalpy is -ve: ΔH < 0 For endothermic reaction,…

Q: Remember: ΔH = ΔE + PΔV OR by rearranging the equation: ΔE = ΔH - PΔV Consider the reaction: 2Na(s)…

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Q: Calculate ΔSº for the reaction using the data table provided. NH3(g) + HCl(g) → NH4Cl(s)     ΔSº =…

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Q: What is the value of AGrxn for the reaction: 2C » 3A+4B ? Given that C » 3/2 A+2B AG° 230.5 kJ/mol…

A: 1. Given: Reaction,             C → 32A + 2B ∆Grxn° = 230.5 kJ/mol 2. Given:      ∆Hrxn° = -37.1…

Q: The value of AH° for the reaction below is - 790 kJ. The enthalpy change accompanying the reaction…

A: Given: ∆Ho=-790 kJ Mass of S = 0.95 g Known: Molar mass of S = 32 g/mol

Q: Calculate AG (in kJ) at 35.4°C for a reaction that has Keq = 121

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Q: For the reaction Co(g) + 3H2(g)CH4(g) + H20(g) AH° = -206.1 kJ and AS° = -214.7 J/K The maximum…

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Q: For the reaction 2co(g) + O2(g)–→2CO2(g) AG° = -508.0 kJ and AS° = -173.1 JK at 335 K and 1 atm. The…

A: The maximum work done by the system is equal to the change in Gibb’s free energy. The expression for…

Q: Consider the following reaction: H₂(g) + 12 (g) --> 2HI(g) Given the following data: H₂: AH = 0…

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Q: Consider the following reaction: H₂(g) + 12 (g) --> 2HI (g) Given the following data: H₂: AH° = 0…

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Q: Given the reaction: 4 Fes) + 3 02(g) - 2 Fe203(5) Delta H = -822.16 kJ --> What is Delta H for the…

A: Enthalpy of a reaction is the energy that consumed or released during the course of reaction.