Calculate the heat of reaction deltaH for the following reaction: 2HCl(g)+Br2(g)——> 2HBr2(g)+ Cl2(g) Round your answer to the nearest kJ/mol.

Q: In which of the following combinations would you expect to have the greatest amount of heat…

A: The amount of heat released when an acid reacts with a base is referred to as heat of…

Q: Given the standard enthalpy changes for the following two reactions (1) 4C(s) + 5H2(g) C4H10(g) AH°…

A: we know according to the hess's law the enthalpy change for the reaction is the sum of the overall…

Q: Calculate the heat of reaction for the reaction 25(g) + 2 OF 2(g) → SO₂(g) + SF4(g) using the…

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Q: The value of ΔH°rxn for the reaction below is -126 kJ. The amount of heat that is released by the…

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Q: When NaOH is neutralized by HCl as shown: NaOH (aq) + HCl (aq)  H2O (l) + NaCl (aq) ΔH = - 56.13…

A: The balanced reaction taking place is given as, => NaOH (aq) + HCl (aq) --------->  NaCl (aq)…

Q: For the reaction H2(g) + 1 2O2(g) --> H2O(l)        ΔH = -286 kJ/mol    What is the enthalpy…

A: Balanced chemical equation: H2(g) + 1/2O2(g) --> H2O(l)        ΔH = -286 kJ/mol  Heat change per…

Q: Use your table of Heats of Formation to calculate the heat of reaction for the following reaction:…

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Q: Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on…

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Q: Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g)…

A: C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (l)      ∆Hrxn° = ∑∆H°f,products-∑∆H°f,reactants   ∆Hrxn° = 3 x…

Q: Use Hess' Law to calculate the enthalpy change (in kJ) for the reaction: NO(3) + O(g) → NO2(3) from…

A: Enthalpy change is a state function and depends on initial and final states of the system. It is…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2C(s) +…

A: According to Hess's law, the enthalpy change of the final reaction can be calculated by adding the…

Q: What is the enthalpy change for the reaction below 8 CO2(g) + 10 H2O(l) → 2 C4H10(g) + 13 O2(g) If…

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Q: calculate

A: Heat of formation for pure elements at room temperature value is Zero. Here Na, H2 and O2 these…

Q: Consider the following reactions:                  C2H6 (g)  +  7/2 O2 (g)  →  2 CO2 (g)  +  3 H2O…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + 2H2(g) ->…

A: Recall the given equations with value of standard enthalpy chages 2Cs + 2H2g → C2H4g  ,∆H°=52.3 kJ…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) +…

A: • The required thermochemical equation is,  2C2H4(g)+ H2(g) → C4H10(g) ; ∆H° = ?    • The given…

Q: From the following enthalpies of reaction H2(g) + F2(g) – 2HF(g) AH = -537 kJ C(s) + 2 F2(g) →…

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Q: The enthalpy of reaction for the combustion of C to CO2 can occur in two steps. (1) C(s) + O2(g) –…

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Q: Find the ∆H of the reaction. Show the complete and step by step solution. PCl5(g) -> PCl3(g) +…

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Q: What is AHan for the following chemical reaction? H20(1) + CC4 (1)-→COCl2(g) + 2HC1(g) You can use…

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Q: Hydrobromic acid (HBr) is a commonly used acid for adding bromine to organic compounds. As bromine…

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Q: From the following heats of reaction,   I) N2(g) + 2O2(g)  à 2NO2(g)            ∆H = +67.6 kJ…

A: flipping the second equation and changing its enthalpy sign gives, 2NO2(g)  -----> 2NO(g) + O2(g)…

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. %3D What is the enthalpy…

A: ⊙ Enthalpy is an additive in nature.Ca(s)+12O2(g)→CaO(s), △H°=-635 kJ/mol—Iwe need to find enthalpy…

Q: Show the calculation of the heat of reaction (AHrxn) for the reaction: CH4 (g) + 2O₂ (g) → CO₂ (g) +…

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Q: What is the standard enthalpy (in KJ) of formation for this reaction: Hint: balance the reaction…

A: Standard enthalpy of reaction is calculated as follows:

Q: (a) Burning of 15.5 g of propane: C3H8(g) + 5 O2(g) --> 3 CO2(g) + 4 H2O(l)      ΔH° = -2220 kJ…

A: Given: Two reaction are given:  a) First reaction is burning of propane.  Mass of propane= 15.5g…

Q: 2N2OH + H2S04 2H2O + Na2SO4 -> AH = -112 kJ %3D What is the heat change for the reaction when the…

A: Given: ∆H = -112 kJ

Q: What is the enthalpy change, Delta Hrxn, for the following reaction?      2 RbI (s)  +  Cl2 (g)…

A: Enthalpy is a state function, so we determine the change of enthalpy of a reaction by subtracting…

Q: if you know 1- BCl, + 3 H20 2 - B2H6 + 6 H2O 3 - V2 H2 + V½ C2 H3BO, + 3 HCI , AH = - 112.5 k) 2…

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Q: Question attached

A: Consider the given reaction 1, 2SO2g+3O2g→2SO3g       ∆H=-198 kJ

Q: Calculate the heat of reaction delta H for the following reaction: 2HBr(g)——> H2(g)+ Br2(g) Round…

A: Bond enthalpy of H—H = 435 kJ.mol-1 Bond enthalpy of Br—Br = 192 kJ.mol-1 Bond enthalpy of H—Br =…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g) ->…

A: 4C(s)  +  5H2(g)   ---->   C4H10(g)         ΔH° = -125.6 kJ C2H2(g)   ---->    2C(s)   +…

Q: From the following enthalpies of reaction: H2 (g) +F2 (g) → 2HF (g) ∆H = −537 kJ C (s) + 2F2 (g)…

A: H2 (g) +F2 (g) → 2HF (g) ∆H1 = −537 kJ  ......................(1) C (s) + 2F2 (g) →CF4 (g) ∆H2 =…

Q: Using the equations 2 H: (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: The first chemical reaction is, 2H2g+O2g→2H2Ol                 ∆H°=-572 kJ/mol......(1) The second…

Q: heat of the reaction for the formation of methanol.

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Q: Use your table of Heats of Formation to calculate the heat of reaction for the following reaction:…

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

Q: From the change in internal energy, AE, given for 40 °C, calculate the change in enthalpy, AH, at…

A: Given reaction: N2O2(g) → N2(g) + O2(g) Given ∆E = -151.3 kJ at 40 ∘C We have to calculate the value…

Q: 13. From the table of standard heats of formation, ΔHf°, values, calculate ΔH° for the combustion of…

A: The balanced equation for the combustion of ethanol is

Q: 1. Calculate the AHO for the reaction 2S + 20F, 2(g) SO (9) + SF 2 (g) 4(g) rxn 6), using the…

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

Q: Given: 2NH3(g) + 3N20(g) → 4N2(g) + 3H20(1) ....AH1 = -1010 kJ 4NH3(g) + 302(g) → 2N2(g) + 6H2O(1)…

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Q: Use the following information to determine the enthalpy for the reaction shown be CHĄ(g) + H2O(g) →…

A: We have to find enthalpy of reaction.

Q: Benzoic acid is used to determine the heat capacity of bomb calorimeters because it can be obtained…

A: Given that : The energy of combustion (Hcombustion) = -26.43 kJ/g Temperature increase (∆T) =…

Q: Given the following decomposition reaction 2H2O2 (l)---> 2H2O(l) + O2 (g) ΔH = –196.1 kJ A. How…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Q3/ from the following reaction 4FEO + O2 2FE2O3 -570 kJ/mole 1- Calculate the heat of reaction per…

A: Using stoichiometric calculations, we will calculate the heat produced in each part.

Q: Consider the following reaction: CH4 (9) + 20, (9) → CO2 (9) + 2H, O(1) AH=-891 kJ a. Calculate the…

A: CH4(g) + 2O2(g) ....> CO2(g) + 2H2O(l)  dH = -891KJ  Combustion reaction is exothermic , 891KJ of…

Q: From the change in internal energy, AE, given for 40 °C, calculate the change in enthalpy, AH, at…

A: Internal energy = -151.3 KJ T = 40°C = 40 + 273 = 313 K

Q: CaO + H2O ->Ca(OH)2      heat = -64.8kJ/mol, how much heat liberated when 7.15g CaO is dropped into…

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Q: What is the standard enthalpy change for the reaction? 2NH3(g)→N2H4(1) + H2(g) AH°1 = -543 kJ-mol-1…

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Q: Using the equations 2 Sr(s) + O2 (g) 2 Sro (s) AH° = -1184 kJ/mol CO2 (g) - C (s) + O2 (g) AH° = 394…

A: Interpretation: From the given information, the enthalpy of new reaction is to be determined. Given…

Q: 2. From the following heats of reaction: 2 SO2(e) + O2(g) →2 SO3(2) 2 S(6) + 3 O2(e) AH=-196 kJ AH =…

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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.