Calculate the change in enthalpy for the reaction below using the following data table. 2B5H9(1) + 1202(g) → 5B,03(s) + 9H20(1)

Q: Using the provided table, determine the molar enthalpy (in kJ/mol) for the reaction 2 NH, (g) + 3…

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Q: Suppose that the reaction of 2.172 moles consumes 3.21 kJ of heat. What is the molar enthalpy of the…

A: The answer to the following question is :

Q: Calculate the standard enthalpy of formation of NO(g) (in kJ/mol) from the following data. N2(9) + 2…

A: N2(g) + 2O2(g) -------> 2NO2(g).     ∆H0298 = 66.4 kJ 2NO(g)+ O2(g)---------> 2NO2(g).…

Q: From the following data, calculate the standard enthalpy at 391.4 kelvin for the following…

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Q: Write down a chemical equation for which the enthalpy of the reaction is identical to the molar…

A: Enthalpy of formation is the enthalpy when 1 mole of product is formed by its constituent elements.

Q: Suppose that the reaction of 1.116 moles consumes 30.34 kJ of heat. What is the molar enthalpy of…

A: Enthalpy change  is associated  with change of one substance undergoing  any change is called as…

Q: Using the given molar enthalpies of formation, determine the change in enthalpy for the combustion…

A: We have to calculate the change in enthalpy for the given reaction

Q: (b) A sample of Magnesium metal weighing 0.14g is combusted in a bomb calorimeter containing 3.0 x…

A: Question is based on the concept of chemical thermodynamics. we have to calculate enthalpy of…

Q: Using the provided table, determine the enthalpy for the reaction:   C₃H₈(g) + 5O₂(g) → 3CO₂(g) +…

A: Given information,    ΔH0 C3H8 = −108.4 kJ/mol ΔH0 O2 = 0 kJ/mol  ΔH0 CO2 = −393.5 kJ/mol ΔH0…

Q: Suppose that the reaction of 1.326 moles consumes 25.27 kJ of heat. What is the molar enthalpy of…

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Q: For the reaction 2C2H6(g) + 7O2(g) ⟶ 4CO2(g) + 6H2O(g) Predict the enthalpy of reaction from the…

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Q: A 2.50 g sample of powdered zinc is added to 100.0 mL of a 2.00 M aqueous solution of hydrobromic…

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Q: Use standard enthalpies of formation to calculate AH°rxn for the following chemical reaction: 3NO2…

A: Given chemical equation : 3NO2(g) + H2O(l) -----> 2HNO3(aq) + NO(g) ΔHorxn can be calculated as :…

Q: Using the provided table, determine the molar enthalpy (in kJ/mol) for the reaction 2 NH, (g) + 3…

A: Given 2NH3 (g) + 3N2O (g)→ 4N2 (g) + 3 H2O (l) Substance ΔH°f (kJ/mol) NH3 (g) -46.2 N2O 81.6…

Q: Given delta U= q + w, if 13 kJ of heat was absorbed by a system and 9kJ of work was done on the…

A: Internal energy is the total energy of a system that consists of kinetic and potential energies. The…

Q: 3. The production of steel from iron involves the removal of many impurities in the iron ore. The…

A: All elements in their standard states (oxygen gas, solid carbon in the form of graphite, etc.) have…

Q: If 4.771 mol of a material produces 775.5 kJ of heat in a reaction, determine the molar enthalpy for…

A: Molar enthalpy for a reaction if it is an exothermic reaction is the heat produced per 1 mole of the…

Q: Given the following reactions: N2(g) + 2 O2(g) → 2 NO2(g)                         ΔH = 66.36 kJ…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: Use standard enthalpies of formation to determine ΔHºrxn  (kJ) for : 2NO2(g) -> N2O4 (g)

A: The enthalpy of the reaction, ΔH is calculated as,

Q: In the early days of automobiles, illumination at night was provided by burning acetylene, C2H2.…

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Q: ing the decay of organic matter, which contains sulfur. The gas burns in oxygen as follows: 2H,S(g)…

A: Hess's law  states that the amount of heat evolved or absorbed in a process is independent of the…

Q: I. Give the thermochemical data below, find the change in enthalpy for the following reactions: NO…

A: ∆H of a reaction is the amount of heat released in the reaction.

Q: 4 C3H9N(1) + 21 O2(g) → 12 CO2(g) + 18 H2O(1) + 2 N2(1) AH = -9,191 kJ Use this information and the…

A: Standard enthalpy of formation can be calculated as, ∆Horeaction=∆Hproduct-∆Hreactant

Q: Using the equations N, (g) + O, (g)→ 2 NO (g) AH° = 180.6 kJ/mol N, (g) + 3 H, (g) → 2 NH, (g) AH° =…

A: Given equations and their enthalpies are, 1)N2(g)+O2(g)-->2NO(g), ∆Ho1=180.6 KJ/mol…

Q: Use standard enthalpies of formation to determine the change in enthalpy for the following reaction:…

A: Applying concept of calculation of chage of enthalpy of chemical reaction. ∆Hreaction= ∆Hf…

Q: Using the equations H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol C (s) + 2 F, (g) → CF, (g) AH° =…

A: Since you have posted multiple questions we will solve the first question for you. To get the…

Q: ΔrU for C6H12O6 was measured to be -2805 kJ mol-1 in a bomb calorimeter. A 1.752 g sample of this…

A: Given, ∆U for C6H12O6 is -2805 kJ/mol  Sample burned is 1.752 g  Molar mass of C6H12O6 is 180 g/mol…

Q: Calculate the standard enthalpy for the combustion of liquid octane, based upon the balanced…

A: Calculate the standard enthalpy of combustion of octane ?

Q: Use standard enthalpies of formation to calculate the standard enthalpy of reaction for the…

A: Given 2H2S (g) + 3O2 (g) →2H2O (l) + 2SO2 (g)

Q: Does the standard enthalpy of formation of H2O(g) differ from ΔH° for the reaction 2H2(g) + O2(g) ⟶…

A: The change in enthalpy of the reaction is equal to the difference between the enthalpies of…

Q: 2. Determine the standard enthalpy change (AH°) for the reaction: C,H +7/2 Ozg 2CO2le) + 3H,O

A: The chemical reactions involve the liberation or absorption of energy. The change in energy is…

Q: Calculate the standard molar enthalpy for the complete combustion of liquid ethanol (C2H5OH) using…

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Q: The combustion of methanol is described by the following equation. 2 CH3OH (l) + 3O2 (g) → 2 CO2…

A: The combustion reaction of methanol is  2 CH3OH (l) + 3O2 (g) → 2 CO2(g) + 4 H2O (l), ΔH = −1454 kJ…

Q: If 2.508 mol of a material produces 733.5 kJ of heat in a reaction, determine the molar enthalpy for…

A: Moles of material = 2.508 moles Heat produced in the reaction means this is exothermic reaction.

Q: Calcium hydroxide is prepared by adding calcium oxide to water: CaO (s) + H2O (l) → Ca(OH)2 (s)…

A: Given, Calcium hydroxide is prepared by adding calcium oxide to water: CaO (s) + H2O (l) → Ca(OH)2…

Q: A student burnt 0.40 g of ethanol using a calorimeter filled with 150 cm³ of water and noted a…

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Q: Calculate the standard enthalpies of the following reactions from the standard molar enthalpies of…

A: 1) The chemical reaction is - CaCO3(s) → CaO(s) + CO2(g)  The standard enthalpy of formation values…

Q: Calculate the standard enthalpy change for the reaction  2C8H18(l) + 17O2(g) → 16CO(g) + 18H2O(l).…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: The standard molar enthalpy of formation of diborane, B₂H₁ (g), cannot be determined directly…

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Q: The hypothetical element X and an oxide of X undergo the following reactions with oxygen, with the…

A: Answer: -150 KJ  Solution:

Q: 2. Determine the standard enthalpy of formation for the following reaction! CH3CI + C12 →CH2C12 +…

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Q: AHO ン ran Given: + 183 KJ 12 Nz lg)+ O,5) AH°rxn こ +33 KI

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Q: Consider this reaction: C6H12O6 + 60₂ à 6CO₂ + 6H₂O. What is the standard enthalpy AH°rxn given the…

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Q: Use standard enthalpies of formation to calculate ΔHrxn∘ for the following reaction:…

A: The reaction given is N2O4 (g) + 4 H2 (g) → N2 (g) + 4 H2O (g) The standard enthalpies of formation…

Q: 6. The oxidation of methylhydrazine, N,H,CH,(), by dinitrogen tetroxide, N,0,(1), was used for…

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Q: Suppose that the reaction of 2.857 moles consumes 2.45 kJ of heat. What is the molar enthalpy of the…

A: The molar enthalpy of a reaction is change in enthalpy of one mole substance that is undergoing…

Q: to calculate the true enthalpies of these reactions by the Hess’ law, as: ΔH°(rxn) = Σ[ν ×…

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Q: Use the standard of enthalpies table to determine the change in enthalpy for:   N2(g) + 3 H 2(g)…

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Q: The first step in the production of nitric acid from ammonia involves the oxidation of NH3. 4…

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Q: Using the information provided along with an understanding of Hess's Law, determine the enthalpy of…

A: Given- 4Fe+3Sn->2Fe2O3+3Sn.         ∆H=? 2Fe+1/2O2->Fe2O3.                      ∆H=-824.2kJ…

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.