A chemist measures the enthalpy change AH during the following reaction: 2 Al(s) + Fe,O3(s)→Al,O3(s) + 2 Fe(s) AH=-852. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ Al,0, (s) + 2Fe(s) → 2Al(s) + Fe,O,(s) ? 2Al,0, (s) + 4Fe(s) → 4A1(s) + 2Fe,0, (s) O kJ 6Al(s) + 3Fe,O,(s) - - 3Al,0,(s) + 6Fe(s) O kJ

Q: Explain how ΔH, heat of reaction is a state function

A: ∆H, heat of reaction is a state function.

Q: Give the mathematical expression of enthalpy.

A: Enthalpy: it is the total amount of heat in a particular system. That is the amount energy absorbed…

Q: The enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride…

A: The formation of hydrogen fluoride from hydrogen gas and fluorine gas is expressed as, H2g+F2g→2HFg…

Q: From the enthalpies of reaction: 2 C(s) + O2(g) → 2 CO(g) ΔH =…

A:

Q: Calculate the enthalpy change for the reaction C2H2(g) + 2H2(g) → C2H6(g)     ΔrH = ? from the…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: Based on this value and the standard enthalpies of formation for the other substances, the standard…

A: Standard enthalpy of formation is the change in enthalpy that accompanies the formation of one mole…

Q: Use the following reactions to calculate the unknown ΔH. Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2 (g)…

A: Answer - The correct option is -(a)   = -792.3

Q: The standard enthalpy change for the following reaction is -851 kJ at 298 K. 2 Na(s) + O2(g) +…

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Q: The standard molar enthalpy of formation of NH3(g) is –45.9 kJ/mol. What is the enthalpy change if…

A: Given, The standard molar enthalpy of the formation of NH3(g) is given by= -45.9 kJ/mol The mass of…

Q: Draw an enthalpy diagram for a general exothermic reaction; label the axis, reactants, products, and…

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Q: 1. Calculate the enthalpy for this reaction: 3NO 2 (g) + H 2 O(ℓ) ---> 2HNO 3 (aq) + NO(g) given…

A: Given reactions are : 1). 2NO (g) + O2 (g) -----------> 2NO2 (g),  ΔH1o = ─ 116 kJ2). 2N2 (g) +…

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction   2…

A: Hess' law of constant heat summation: The Hess law states that the change of enthalpy in a chemical…

Q: enthalpy change for the reaction 2C8H18(l) + 17O2(g) → 16CO(g) +

A: According to Hess's law we can treat thermodynamic equations like algebraic equations i. e. We can…

Q: (1) N2(g) + O2(g)2NO(g)...... ΔH° = 181.8 kJ (2) N2(g) + 2O2(g)N2O4(g)......ΔH° = 9.2 kJ what is…

A: The enthalpy change of the system is a state function. The change in enthalpy does not depends on…

Q: (a) Consider the following chemical reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g) ΔH = ? Use…

A: Given: The thermochemical data, 4Fes + 3O2g → 2Fe2O3s                      ∆H° = -1652 kJ/mol…

Q: Calculate ΔH for the target reaction using the equations below.

A:

Q: 1. Calculate the enthalpy of reaction for the combustion of methane gas, CH4, to form CO,(g) +…

A: In this question, we want to Calculate tye Enthalpy of the combustion Reaction for methane. You can…

Q: Given the following data   Calculate ΔH for reaction   On the basis of the enthalpy change, is this…

A: Answer is explained below.

Q: What is enthalpy, and what is ΔH for a reaction, and what does it mean if ΔH is positive or…

A: Enthalpy can be defined as the total amount of heat of the system which can be represented by a…

Q: he assumption made when chemical reactions are performed which allows u

A: Delta H is the change in the enthalpy, and DeltaE is the change in the energy. In reaction, reactant…

Q: 2NO(g) + 02(g)–2NO2(g) Based on this value and the standard enthalpies of formation for the other…

A: Given  2NO (g) + O2 (g) ---> 2 NO2 (g)  ∆H rxn = -112.0 KJ  ∆H°f (NO2) = ?

Q: A scientist measures the standard enthalpy change for the following reaction to be 6.7 kJ : CO(g) +…

A:

Q: A chemist measures the enthalpy change AH during the following reaction: 3 N2(9) + 8 H2(9)→4NH3(g) +…

A:

Q: When HCl(aq) and NaOH(aq) are mixed in a beaker, the beaker feels warm to the touch. What is known…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the standard enthalpy change for the reaction:  2PbCl2 (s) + O2 (g) --> 2PbO (s) + 2Cl2 (g)…

A: The standard enthalpy change of the reaction can be calculated with the help of the given two…

Q: What is the enthalpy change for the first reaction? Fe2O3(s) → 2Fe(s) + 3/2O2(g) ΔH =  4Fe(s) +…

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Q: The standard state of carbon is graphite. ΔH°f,diamond is +1.896 kJ/mol. Diamonds are normally…

A: The question is based on the concept of chemical thermodynamics . we need to calculate enthalpy of…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g)–2PBO(s) AH°…

A: Consider the given thermochemical equations is as follows; 1 2 Pbs   +  O2g  →  2 PbOs…

Q: Given the standard enthalpy changes for the following t (1) 2Ni(s) + O2(g) 2N¡O(s) AH° = -479.4 kJ…

A: In classical thermodynamics, the difference between the enthalpy of reactants and products is known…

Q: Use the data provided to find the enthalpy change for the following reaction, by applying Hess's…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O₂(g) → 2PbO(s)…

A:

Q: a 0.0950 mol sample of benzoic acid was combusted in a bomb calorimeter and the temp in the bomb…

A: Calorimeter constant is the heat capacity of calorimeter. It is the heat required to raise the…

Q: Given the following reactions: 2S(s) + 3O2(g) → 2SO3(g)                 ΔH = -790 kJ S(s) + O2(g)…

A: Hess's law is defined as amount of energy released or absorbed is same wheather the reaction take…