4. Calculate AH for the reaction: Use the following data: C + O₂ CO₂ CO + 1/2O2 → CO2 C + 1/2O₂ → CO ΔΗ = - 394 kJ ΔΗ = - 283 kJ

Q: Using the equations Sro (s) + CO, (g) → SrCO, (s) AH° = -234 kJ/mol 2 Sr(s) + O, (g) → 2 SrO (š) AH°…

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Q: Given the reactions, X(s) + 0,(g) → XO(s) ΔΗ-861.9 kJ XCO,(s) → XO(s) + CO,(g) ΔΗ+339.3 J what is AH…

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Q: Given the following reaction: CO(g) + O(g) →→→→CO₂(g) AH,º=? Calculate the enthalpy of reaction…

A: We have to calculate the enthalpy of reaction given the following enthalpies of formation

Q: Calculate AH for the reaction 2 Al (s) + 3 Cl2 (g) →2 AICI3 (s), from the following data. 2 Al (s)…

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Q: Use the thermodynamic quantities given below to calculate the theoretical ΔH for this reaction:…

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Q: Consider the following two reactions: 2 Fe(s) + O₂(g) → Fe₂O3(s) ▲„Hº = -206 kJ/mol 2 3 Fe(s) + 2…

A: The given reactions are 2 Fe(s) + 32 O2(g) →Fe2O3(s), ∆rH°= -206 KJ/mol. 3 Fe(s) + 2 O2(g)…

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

A: -> If ∆H =+ve => reaction is endothermic reaction. -> if ∆H = -ve => reaction is…

Q: Calculate ΔHrxn of the following reaction: 2 NO (g) + 2 H2 (g)  → N2 (g) + 2 H2O (g)     ΔHrxn  =…

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Q: Use the information provided below to calculate AGran (kJ/mol) for the reaction at 25°C. R= 8.314…

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Q: 1. You have calculated the AH for the formation of ammonium chloride from your experimental data HCI…

A: Given Reaction : HCl + NH3 ---> NH4Cl ∆H°f = -167.159 KJ/mole ∆H°f = -80.835 KJ/mole ∆H°f =…

Q: Given the reactions, X(s) + 0,(g) – XO(s) AH = -532.9 kJ %3D XCO,(s) XO(s) + CO,(g) AH = +290.3 kJ…

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Q: 4. Consider the following equations: 4 PCI; 1. P₁ + 6 Cl₂ → P₁ +50₂ → 2. P₂010 AH₁ = -1226 kJ AH₂ =…

A: Given, Enthalpy change for the few reactions are given, 1) P4 + 6Cl2  ➝ 4PCl3 ∆H1 = -1226 kJ 2) P4 +…

Q: Given that the enthalpy of neutralization for the reaction of HCl (a strong acid) and NaOH (a strong…

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Q: For a given sample of CH3OH, the enthalpy change during the reaction is 82.5 kJ. What mass of meth…

A: Given :- ∆H = 82.5 kJ  To calculate :- mass of CH4 (in g)  Molar mass of CH4 = 16.0 g/mol

Q: 3. Calculate AH for the reaction Mg (s) + N2 (g) + 30; (g) → Mg(NO,). (s) given the following data.…

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Q: How much heat is released or absorbed (in kJ) by the system in the reaction of 19.3 g of SF, with…

A: The balance chemical equation :  SF6(g) + 3H2O(l) ----> 6HF(g) + SO3(g)  The Standard heat of…

Q: Given the standard enthalpy changes for the reactions: Pals) + 302(8) → PaO6[s) AH° = -1640 kJ/mol…

A: Equation 1: P4(s) + 3O2(g) → P4O6(s)    ∆H° = - 1640 KJ/mol  Equation 2: P4(s) + 5O2(g)→ P4O10(s)…

Q: 18. Use the chemical equations shown below to determine the enthalpy for the reaction: Fe,O«(s) +…

A: To solve this problem we will use the given thermochemical equations .  We have to make a…

Q: E 2A + B AH =? Given these stepwise reactions: A+ 2C D AH = -369 kJ AH = -285 kJ 199 kJ E A+ D 1/2 B…

A: E ---> 2A + B   ∆H = ?  Stepwise reactions :  A + 2C ---> D   ; ∆H = -369 KJ  E  ----> A +…

Q: 17. The enthalpy of formation for H20(g), CO2(g), and C2H5OH(1), in kJ/mol, are given as follows…

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Q: Given: 2 Ag+(aq)  +  Cu(s)  ⟶  2 Ag(s)  +  Cu2+(aq)        ΔGo  =  -88.66 kJ/mol   Calculate the…

A: The given balanced redox Chemical Reaction is - 2 Ag+(aq)  +  Cu(s)  ⟶  2 Ag(s)  +  Cu2+(aq)…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O₂(g) → 2PbO(s)…

A: Recall the given reactions,                          1 2 Pb s  +  O2 g  →  2 PbO s…

Q: Determine the value of A¡H for the following reaction: 1 MnO2 (s) → MnO(s) + O2 (g) 2

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Q: Calculate the amount of heat transferred when 26.0 g of CH3OH(g) is decomposed by this reaction at…

A: According to reaction, 2 moles of CH3OH involves +252.8 kJ

Q: Calculate AH for the reaction NH3 (g) + CH4 (g) → HCN (g) + 3 H, (g), from the following data. N2…

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Q: 3. A student added calcium to water and measured the increase in temperature to determine AH for the…

A: "Since you have posted a multiple sub-part question, we will solve the first 3 sub-parts for you.…

Q: 1. Calculate the heat evolved when 13.56g of oxygen gas (O2) is used to burn  white phosphorus at…

A: 1) Given, P4(s) + 5O2(g) → P4O10(s), ΔH = -3013 kJ/mol ∆H is in negative (-) which indicate the…

Q: The standard enthalpy changes for the formation of aluminum oxide and iron (III) oxide are 2 Al(s) +…

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Q: 6A + 2C 6D Determine the enthalpy(AH) in kJ of the above reaction using the reactions below: 6B 2C…

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

Q: Determine the enthalpy (in kJ/mol) for the reaction 3 SiCl₄ (s) + 4 Fe (s) → 4 FeCl₃ (s) + 3 Si (s)…

A: To solve this we have to do some  mathematical operations with the given  two equations to get the…

Q: Using the below enthalpy of formation values, determine the enthalpy for dissolution (dissolving) of…

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Q: 2) Why is AH used? Consider the following reaction taking place at constant temperature 298 K Na (s)…

A: The objective of the question is to determine  and and then find the percent difference from the…

Q: What is the enthalpy change for the reaction MgO(s) + 2HCl(g) →MgCl2(s) + H2O(l)? Enthalpies of…

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Q: 1. What is the kinetic energy in kilojoules of a space station weighing 8010 kg and moving at a…

A: According to the Bartleby's policy, an expert is allowed to answer one question at a time. The…

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.