Calculate ΔHrxn of the following reaction: 2 NO (g) + 2 H2 (g)  → N2 (g) + 2 H2O (g)     ΔHrxn  = ??? Given the following ΔHf° values: NO (g) ΔHf° = 90. kJ H2O (ℓ) ΔHf° = –286 kJ H2O (g) ΔHf° = –242 kJ

Q: Given the standard enthalpy changes for the following two reactions: (1) Hg(1) + Cl½(g)–→HgCl½(s)…

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

Q: The standard enthalpy change for the following reaction is 986 kJ at 298 K. Ca(OH)2(9) → Ca(s) +…

A: The given reaction is  Ca(OH)2 -------> Ca(s) + O2(g) + H2(g)  Delta H = 986 kl/mol

Q: 4. If the heat of formation of sodium chloride is -411 kJ/mol, then the heat of reaction for 0.750…

A: heat of formation of sodium chloride is -411kj/mol which means, for formation of 1 mole of Nacl,…

Q: 1. Calculate the AHrxn for the reaction, Sn (s) + Cl2 (g) → SnCl2 (s) AHrxn = ? Sn (s) + Cl2 (g) →…

A:

Q: 40. Determine the enthalpy of the reaction: S (s) + 3/2 O2 (g) → SO; (g), given the following…

A:

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: Given the reaction: 4 Fe(s) + 302(g) → 2 Fe203(s) A H= -1652 kJ, what is the enthalpy change when…

A: for a given reaction, 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) enthalpy change, Δ H = -1652 KJ

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: has

A: We wil use Clausius clapreyon Equation

Q: From the change in internal energy, AE, given for 185 °C, calculate the change in enthalpy, AH, at…

A: Relation between ΔH and ΔE, ΔH = ΔE + ΔnRT

Q: the given data, calculate the heat of reaction for the following reaction: (NH4)2Cr207(5) – Cr20a(s)…

A:

Q: Given the following reactions: N2(g) + 202(g) –→ 2NO2(g) AH = 66.4 kJ NO(g) + ½ O2(g) → NO2(g) AH =…

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

Q: Calculate the standard enthalpy change for the following reaction at 25 °C.…

A: If the reaction between the species acid and base than the salt and water will be generated.

Q: N2 (g) + O2 (g) 2 NO (g) AH°rxn = +197 kJ %3D NO2 (g) → NO (g) + 1/2 O2 (g) AH°rxn = +89.2 kJ What…

A:

Q: Calculate the enthalpy of reaction for the following reaction: NaOH(s) + HCI(g) ----> NaCI(s) +…

A: Given  Enthalpy of Formation of NaCl(s)   = - 411 KJ/ mole  Enthalpy of formation of H2O(g)    =…

Q: Given the following reactions 2NO → N2 + O2 AH = -180 kJ 2NO + O2 → 2NO2 AH = -112 kJ

A: Solution                         Given that 2NO  N​​​​​​2 + O​​​​​​2       ∆H = -180 kJ 2NO +…

Q: Nitric acid, HNO3, can be prepared by the following sequence of reactions:4NH3(g) + 5O2(g) ⟶ 4NO(g)…

A: Here we have a multi-step reaction:

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

A:

Q: Calculate the heat of formation of one mole of SO₃ gas from the following data: S(s) + O₂(g) →…

A: We are given the two reactions as follows: S(s) + O₂(g) -----------> SO₂(g)......................…

Q: Given the standard enthalpy changes for the following two reactions: (1) Hg(l) + Cl2(g) ->…

A: The question is based on Hess law.   it  states that net enthalpy change for the reaction remains…

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

A:

Q: What is the quantity of heat evolved at constant pressure when 30.5 g H2O(l) is formed from the…

A:

Q: Calculate AH for the reaction: NO (g) + O (g) → NO2 (g) AH. = ? From given the following…

A:

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

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

Q: 4. A 50.0 gram piece of hot iron (specific heat = 0.451 J/g °C) was placed in a beaker of 600. grams…

A: The question is about calculating the Original Temperature of the hot iron piece using the given…

Q: Given the following reactions N2 (g) +202 (g) → 2NO2 (g) 2NO(g) + O2 (g) → 2NO2 (g) ΔΗ = -114.2 kJ…

A:

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: Magnesium reacts with hydrochloric acid to produce hydrogen gas. ΔH°f for HCl(aq) = –167.16 kJ/mol…

A: Given: ∆Hf° HCl(aq) = -167.16 kJ/mol ∆Hf° MgCl2= - 801.17 kJ/mol

Q: Calculate how much heat is released or absorbed

A: This is a dissociation reaction. In this reaction,  Molecular weight of NH3=17.031g/mol 2…

Q: A certain reaction has ∆?°= -19.5KJ and ∆S°= 42.7 J/K, is the reaction exothermic or endothermic?

A:

Q: Calculate the enthalpy change for the reaction:  3NO2(g) + H2O(ℓ) ---> 2HNO3(aq) + NO(g)   Given:…

A: The reactions given are, 1) 2 NO (g) + O2 (g) ------> 2 NO2…

Q: Use the following reactions to answer the next two questions.       4PbO (s) → 4Pb (s) + 2O2 (g)…

A: The given three reactions are, (1) 4PbO (s) → 4Pb (s) + 2O2 (g)                          ∆H° = 876…

Q: Consider the following thermochemical data: Cl2(g) → 2CI(g) AH° = 242.3 kJ l2(g) → 21(g) AH° = 151.0…

A:

Q: What is the ΔHRXN for the following reaction?         N2(g) + 2O2(g) ⟶ 2NO2(g) Enthalpies for these…

A: • The required equation is,  N2(g) + 2O2(g) ⟶ 2NO2(g) ; ∆H= ??    • The given thermochemical…

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: 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: The standard enthalpy change for the following reaction is 561 kJ at 298 K. Cd(OH)2(s) → Cd(s) +…

A: Cd(OH)2 (s)  -----> Cd(s) + O2(g)  + H2(g)   ∆Ho1 = 561 kJ   ........................(1) Cd(s) +…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H₂(g)-C₂H₂(g) (2)…

A: What is the stadard enthalpy change for the reaction (3)?

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: Determine ΔH for the third reaction from the information given.   C3H8(g) + 3 H2O(g) ↔ 3 CO(g) + 7…

A: Calculating ∆H for the given reaction by multiplying second reaction by 3 and adding to reaction 1.

Q: Calculate the energy change (in kJ) for the combustion of 62.0 grams of propane?

A: A specific heat quantity is generated on reacting any substance with O2. This heat is generally…

Q: Consider the following two reactions: N2(g) + 202(g) → 2NO2(g) AH = +88 kJ N2(g) + 202(g) → N¿0«(g)…

A:

Q: Hydrogen peroxide can be prepared in several ways. One method is the reaction between hydrogen and…

A: ∆G°rxn can be calculated using standard Gibbs free energy change of formation (∆G°f) of species…

Q: Calculate AH for the reaction: NO (g) + O (g) → NO2 (g) AH = ? From given the following information:…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + 02(g)→2N¡O(s) AH°…

A: Given, 1) 2Ni(s) + O2(g) ➝ 2NiO(s)    ∆H° = -479.4 kJ 2) 2Hg(l) + O2(g) ➝ 2HgO(s)  ∆H° = -181.6 kJ…

Q: The lower the change in free enthalpy associated with a reaction, the slower this reaction is. True…

A: Change in free energy is associated with spontaneity. The spontaneity of the reaction doesn't define…

Q: A.) Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + O2(g)2NI0(s)…

A:

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 =…

A:

Q: Given the following combustion reaction and its molar enthalpy of reaction: 2NO(g) + O2(g) 2NO2(g)…

A: Given reaction: 2NO(g) + O2(g) → NO2(g)             ΔHo = -112 KJ