4. a. Use the following reactions and AH° data to determine AH° for Ca (aq) + 20H (aq) + H,(g) Ca(s) +2H,0(1) Answer: -431.2 kJ -) Known reactions: AH° = -55.9 k] H'(aq) + OH (aq) Ca(s) + 2H (aq) H,0(1) Ca (aq) + H,(g) AH° = -543.0 kJ 1) b. What is AH° in J? CHEM 111

Q: Given the data below, calculate the delta H for the following reaction. Round your answer to the…

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Q: See image below. The answer I got is  -626.58 kJ...is that correct?

A: Yes the answer which you got as per the given values is correct. The ΔH of the given reaction can be…

Q: Enthalpy Entropy (AH)? Spont.? (-AG)? Reaction Туре (AS)? Yes, No, or Maybe (TD*) Celaelg).t 802(g)…

A: By seeing nature of the reactants and products, the supply or evolution of heat energy, we can…

Q: F6 The value of AH° for the reaction below is -186 kJ. H₂ (g) + Cl₂ (g) → 2HCI What is the AH° for…

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Q: rxn reaction So,Cl, (9)+ 2H,0(1) →H,SO,(1)+2HCI(g) AH° = -6 Calculate the AH', of HCI(g) in kJ/mol.…

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Q: Given the following reactions: CH4 + 3 02 - 2 CO2 + 2 H20 дн -- 1422 k H2 + 1/2 02 - H20 дн -- 277 k…

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Q: Enter your answer in the provided box. Calculate AG for the process: BaF2(s) = Ba*(aq) + 2F (aq) The…

A: Given data :  1.Ksp = 1.70×10-6  2. Temperature T = 25°C = (25+273)K       T= 298K

Q: Use the AH°f information provided to calculate AH°rxn for the following: SO2CI2(g) + 2 H2O(1) → 2…

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Q: A student determines the value of the equilibrium constant to be 3.93x1013 for the following…

A: At equilibrium the reaction spontaneous or non spontaneous that depends on the value of ∆G° of the…

Q: Given the following: = Sa (0) + O2(g) → 50₂ (0) 3 (a)+02 (0) 501 (9) The heat of reaction for SO₂(g)…

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

Q: 3. Calculate AHⓇ for the combustion reaction of butene: C.HB (g) + 60₂(g) → 4CO₂(g) + 4H₂O(l), AH° =…

A: Given,  Reaction: C4H8(g) + 6O2 →4CO2 + 4H2O ∆H=? The equation for the given reaction are: 2H2(g) +…

Q: What is AH°xn for the following reaction, if given the three uxu known reactions below: 2CO2 (g) +…

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Q: For the reaction below: Cigraphite) + H,O(e) → COe) + H2le) The standard enthalpy at 298 K (AH°,98)…

A: We have to calculate the enthalpy of reaction at 125°C from given values Cp and enthalpy at 298 K.

Q: Pls help ASAP

A: Given: Some reactions are given with there ∆Ho values To find: ∆Ho for the reaction shown below:…

Q: 2.3. Consider the following data provided below: NH, (9)–N,(9)+H,(0) AH = 46 kJ 2 2 H,(g)+ 0,(g)–→2…

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Q: E) Calculate the AHrn given the following data CH4 (g) + 202 (g) → cO2 (g) + 2H20 (g) Substance…

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Q: I. STANDARD MOLAR ENTHALPHY OR FORMATION AND REACTION: Calculate the AH° of the following reaction.…

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Q: What is the change in enthalpy in joules when 5.44 × 10* mol of A9CI solid dissolves in water…

A: Enthalpy is the sum of internal energy and work done , it is always obtained as Change in enthalpy.

Q: Calculate the AH, for the following reaction: 8 Al(s) + 3 Fe3O4(s) --> 4 Al2O3(s) + 9 Fe($) 9 Fe($)…

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Q: Determine the value of AH° in kJ for the following reaction: 2SO2(g) + O2(g) 2SO3(g) Select one: O…

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Q: Calculate the AH for the reaction C,H,, +H2 → C,H, e), from the following data. C,H + 3 02 e →2 CO2…

A: The enthalpy of a reaction is a state function, one that depends on the current state of the…

Q: Which of the following reactions is/are endothermic? Choose ALL that apply. a. C(s) + O2(g) → CO2(g)…

A: Identify the reaction is exothermic or endothermic ----

Q: SO3 (9) Calculate the AHO for the reaction S 2(g) rxn using these two reactions: AH = -296.8 kJ Se +…

A: A reaction can be determined by the addition or subtraction of elementary reaction. Elementary…

Q: 4.3. Follow these values of AH in the similar condition of these reaction: (1) 2SO2(g) + Oz(g) =…

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Q: Calculate the AH for the reaction (6 points)

A: Calculate the ∆H for the reaction., NO(g) + O(g) → NO₂(g)

Q: [1] Given: CH.(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

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Q: [1] Given: CH,(g) + H2O(g) CO(g) + 3H2(g). AH° for the reaction is +206.1 kJ/mol, while AS° is +215…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: 4. Reaction Na + Cl2 → Type of reaction Balanced equation

A: 4.     Na +  Cl2   ---->      NaCl        Sodium metal and chloride combines to form sodium…

Q: Given the following reactions: OF2 + H20 → O2 + 2 HF AH = - 295 kJ SF4 +2 H20 → SO2 +4 HF AH=-816 kJ…

A: Hess's law states that when a reaction occurs in multiple steps then its enthalpy change is the…

Q: Which of the following reactions MUST be NONSPONTANEOUS at ALL temperatures? A reaction with AH =…

A: 1) A reaction with ΔH= 100 kJ and ΔS= - 10 J/K is the correct option to get non spontaneous reaction…

Q: Use the AH° data given below to calculate AH° (in kJ) for the reaction: C2H4(g) + H2(g) –→ C2H6(g)…

A: Hess's law states that the enthalpy change for an overall reaction can be determined from the…

Q: The value of AG" at 25 °C for the following reaction:NO (g) + 1/2 C12 (g) → NOCI (g) is kJ/mol. At…

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Q: Consider the pair of reactions. Draw the major organic product of each reaction, then predict the…

A: Given reactions:

Q: Calculate the overall AH°ffor the following chemical reaction in kJ/mole to 2 decimal places. 13…

A: ∆Hof reaction = ∑n∆Hof products - ∑m∆Hof reactants

Q: Find AGpen for the reaction: 3 C(s) + 4 Hk(g) CaHs(g) Use the following reactions with known values…

A: The value of ∆G depends on the Stoichiometry of the chemical equation If a chemical equation is…

Q: What is the value of AGº at |AH®»0 -98.8 kJ•mol- AS rxn rxn 25 °C for the reaction -141.5…

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Q: 2. Given the data in the table below and AH°. for the rxn reaction so,Cl, (g) + 2H,0(1)…

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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.