Calculate AHxn for the following reaction: 2C2H4 (g) + 2H2 (g) 2C2H6 (g) Using the following data and Hess's Law. C2H4 (g) + 302 (g) 2CO2 (g) + 2H20 (g) AH = -1411 kJ 2C2H6 (g) + 702 (g) → 4CO2 (g) + 6H20 (I) AH = -1560 kJ 2H2 (g) + O2 (g) → 2H20 (g) AH= -285.8 kJ

Q: Use the following information to determine the enthalpy for the reaction shown below CS2(1) + 302(g)…

A: Since, there are multiple questions, we are authorized to answer only the first one. If you require…

Q: Given the following enthalpy of reactions: N2(g) + O2(g) --> 2NO(g); DHo =…

A:

Q: Determine the enthalpy change for the reaction: 3C2H2(g)   →   C6H6(l)      given the following…

A: • Given,    2C6H6(l)+1502(g)⟶12C2(g)+62O(g),ΔH=−6271kJ   — (i)…

Q: 42. Calculate Use Hess's law to determine AH for the reaction NO(g) + 0(g) → NO₂(g) AH = ? given the…

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

Q: Given the following equation...      3Al(s) + 3NH4ClO4(g)  →  Al2O3(s) + AlCl3(s) + 3NO(g) +…

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Q: For a particular isomer of C8H18, the combustion reaction produces 5108.7 kJ of heat per mole of…

A: Given: Enthalpy of reaction = -5108.7 kJ/mol Standard enthalpy of O2(g) = 0 kJ/mol Standard enthalpy…

Q: Calculate the enthalpy change for this  reaction if  6.80 x 10^5 g of SO2of  are removed by this…

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Q: Use the thermochemical equations below to determine the AHXN expression for: 2 N20(g) → 2 N2(g) +…

A: When we reverse the reaction, then enthalpy for the reversed reaction will be the same as the…

Q: Using the equations 2 Sr(s) + O2 (g) –→2 Sro (s) AH° = -1184 kJ/mol CO2 (g) → C (s) + O2 (g) AH° =…

A: There are two questions are given but I'm solving  first one according to the guidelines of bartleby…

Q: Equation A: 1/2 N2 (g) = 1/2 O2 (g) = NO (g) H=90.3 Equation B: 2 NOCl (g) = N2 (g) + O2 (g) + Cl2…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: Determine the enthalpy of reaction for 2CH2(g) → C₂H4(g) + 2H₂(g) using the equations: 2C₂H6(g) +…

A: When any reaction is reversed, then the value of the enthalpy of the reaction remains the same but…

Q: Use the thermochemical equation: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) ΔH = -3120kJ and the known…

A: The change or variation in enthalpy (heat) associated with any given reaction producing 1 mole of…

Q: Given the following hypothetical thermochemical equations: A2D (g) + 3/2 E2 (g) → A2E (1) + DE2 (g)…

A: According to Hess law of constant heat summation enthalpy change of a net reaction always remains…

Q: Using the equations H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F2 (g)→ CF4 (g) AH° =…

A: The quantity of energy released/absorbed in a chemical reaction is furnished by the enthalpy change…

Q: Use Hess’ Law and the thermochemical information provided to calculate DH for the reaction shown…

A: Given: Cl2O (g)  +  OF2 (g) → 2 ClF (g)  +  O2 (g) ΔH = -167.5 kJ F2 (g)  +  ½ O2 (g)…

Q: Based on the reactions: 1. 6FEO(s) + O2 (g) →2F@;O4 (3) AH1 = - 3607.2 kJ 2. 4Fe;O4 (2) + O2…

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Q: (b) Hydrogen sulfide, H2S, is formed from the following reaction: H2(g) + Sa(s) → H2S(g) Determine…

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Q: Given the following data N2(g) + O2(g) → 2NO(g) 2NO(g) + O2(g) → 2NO2(g) AH = +180.7 kJ AH 113.1 kJ…

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Q: 3H2 (g) + CÓ (g) → CH4 (g) + H2O (g) Use Hess's Law to determine the enthalpy change for this…

A: The reactions given are, 1) 2) 3) 4)

Q: Given the following thermochemical equations, C2H2 (8) + O2 (g) → 2CO2 (8) + H2O (I) AH C (s) + O2…

A: The chemical equation for the decomposition of one mole of acetylene to its elements is given…

Q: How does the thermochemical equation S (s) + O2 (g) - SO2 (g), AH = -296 kJ, need to be modified to…

A: Enthalpy (∆H) is a property which is the sum of systems internal energy and the product of it's…

Q: 2NO(g) O2(g) - 2NO2(g), AH=-113.1 kJ 2N20(g) 2N2(g) + O2(g), AH=-163.2 kJ -> use Hess's law to…

A: Use ∆H equation and do experiement to get resulting equation. ∆H rxn= 43.53kj

Q: Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25°C, diamond changes to…

A: Hess's law states that the energy change in an overall chemical reaction is equal to the sum of…

Q: Given the following data: AHr [CH«(g)] = -75 kJ mol·' C(graphite) → C(g) AH =+712 kJ mol" 1/2H:(g) →…

A: The chemical equation for formation of CH4 can be written as follow                         C(g)   +…

Q: Given the thermochemical equatio ns            C3H6(g) + H2(g) → C3H8(g)…

A: C3H6 (g) + H2 (g) → C3H8 (g)        ∆H°1 = -124 kJ      ......(1)  C3H8 (g) +5 O2 (g) → 3 CO2 (g) +…

Q: Determine the enthalpy change for the reaction: 3C2H2(g)   →   C6H6(l)      given the following…

A: Given data,2C6H6(l)+15O2(g)  → 12CO2(g)   +    6H2O(g)  ΔH=−6271 kJ ---1 2C2H2(g)+5O2(g)  →  4CO2(g)…

Q: Using Hess's Law determine the delta H for the following reaction, likewise, note if the reaction is…

A: Using hess's law we have to determine ∆H for a given reaction.

Q: Based on the reactions: 1. 2NO2 (2)→N204 (g) AH1 =- 57.2 kJ 2. 2NOg) + 02 (g)→2NO2 (2) AH2 = -114.1…

A: By Hess's law : Required equation = equn 1 + equn 2 ∆H = ∆H1  + ∆H2         = -57.2 + ( -114.1 )…

Q: Determine the enthalpy of reaction for 2CH4(g) → C2H«(g) + 2H2(g) using the equations: 2C2H6(g) +…

A:

Q: Given the following thermochemical equations, C2 (g) +5/2O2 (g) → 2CO2 (g) +H2O (l) ΔH = −1299.5kJ…

A: Given: C2H2(g)+52O2(g)→2CO2(g)+H2O(l)     ∆H=-1299.5 kJ---eqn(1)C(s)+O2(g)→CO2(g)…

Q: Hess's Law Calculate AH for the reaction: 2 C(s) + H2(g) → C2H2(g), given the following chemical…

A: The enthalpy change(∆H) of a reaction changes by the following operations ∆H changes its sign when…

Q: 22) When 1 mole of Fe2O3(s) reacts with H₂(g) to form Fe(s) and H₂O(g) according to the following…

A: Given reaction: Fe2O3 (s) + 3H2 (g) → 2Fe (s) + 3H2O (g) The amount of energy absorbed in the…

Q: Given the following thermochemical equations: 4 FeS2(s) +11 O2(g) →→2 Fe2O3(s) +8SO2(g) 2 H2S(g) +3…

A:

Q: Determine AH for the following reaction, N₂(g) + 3 H₂(g) → 2 NH3(g) given the thermochemical…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.