Use the given information to calculate the enthalpy of reaction for the following reaction: P4010 (s) + 6PCI5 (s) → 10C3PO(g) (1) P4 + 6Cl₂ → 4 PCI3 (2) P4 +502 → P4010 (3) PCl3 + Cl₂ → PCI5 (4) PCl3 + 1/2O2 → Cl3PO ΔΗ°= - 1272 kJ AH = -2915 kJ AH = -125 kJ ΔΗ°= -267 kJ

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

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Q: Given the following reactions             Fe2O3 (s) + 3CO (s) → 2Fe (s) + 3CO2 (g)            ΔH =…

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

Q: Using the provided table, determine the enthalpy (in kJ/mol) for the reaction 2 K(s) + 2 H₂O(l) → 2…

A: Answer:- This question is answered by using the simple concept of calculation of enthalpy of…

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The standard reaction enthalpy of a reaction is given by   ∆Hrxn°=∑∆H° of the products -∑∆H° of the…

Q: Ammonia is used in the formation of hydrogen cyanide.   NH3(g) + CH4(g) → HCN(g) + 3 H2(g)…

A: According to Hess law of constant heat summation, the total enthalpy of a reaction is the sum of all…

Q: Consider the following reactions:  Fe2O3 (s) + 3CO (g)  →  2Fe (s) + 3CO2 (g)      ΔH = -28.0 kJ…

A: From given data Calculate : ∆H° = ? For 3Fe2O3 (s) + CO (g) → CO2 (g) + 2Fe3O4 (s)

Q: Given the standard enthalpy changes for the following two reactions: ΔΗ° -- 544.0 kJ (1) 2Fe(s) +…

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Q: What is the enthalpy change when  1.00 mol of carbon dioxide (CO2) is formed? C12H22O11(s)   + 12…

A: The reaction is given as,

Q: iven the data below, calculate the enthalpy of reaction (in units of kJ) for the reaction:  2 C2H2…

A: Enthalpy of a reaction = Sum of enthalpies of products – Sum of enthalpies of reactants

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) 2Pb(s) + O2(g) → 2PbO(s)…

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Q: Red phosphorus reacts with liquid bromine in an exothermic reaction (Fig. 12.18): 2 P(s) + 3…

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Q: Fe2O3(s) + 3CO(s) → 2Fe(s) + 3CO2(g) ΔH = -28.0 kJ 3Fe(s) + 4CO2(s) → Fe3O4(s) + 4CO(g) ΔH = +12.5…

A: Enthalpy of reaction 1 -  ∆H = -28.0 KJ  Enthalpy of reaction 2 -  ∆H = +12.5 KJ  Enthalpy for final…

Q: Use Hess's Law to calculate the enthalpy change for the reaction WO3(s) + 3H2(g) → W(s) + 3H2O(g)…

A: The enthalpy of the first reaction is -1685.4 kJ. The enthalpy of second reaction is -477.84 kJ.

Q: 2CH3OH(g)→2CH4(g)+O2(g),ΔH=+252.8 kJ   For a given sample of CH3OH, the enthalpy change during the…

A: Given,For a sample of CH3OH, the enthalpy change during the reaction is 82.9 kJ.

Q: Using the information provided, determine the enthalpy (in kJ/mol) for the reaction 2 NH₃ (g) + 3…

A: The enthalpy of a reaction is the enthalpy change between products of the reaction and the reactants…

Q: Calculate the standard enthalpy change for the following reaction: CH4(g) + 2 O₂(g) → CO₂(g) + 2…

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Q: enthalpy

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Q: Calculate ΔH (in kJ/mol) for the reaction described by the equation. 6 NH3(g) + 5 O3(g) → 6 NO(g) +…

A: Tha delta H represents the enthalpy change during the reaction. Now if the enthalpy change is…

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: Consider the reaction of sodium metal and water. 2Na(s) + 2H20(1) → 2NaOH(aq) + H2 (g) AH = -369 kJ…

A: 2Na(s)+2H2O(l) --->2NaOH(aq)+H2(g) ∆H = -369KJ On reversing the direction of reaction, sign of…

Q: The following reaction is endothermic. KCIO4(s) K(s) + 1/2 Cl₂(g) + 2 0₂(g) AH(1) = 433 kJ Calculate…

A: Recall the given reaction,                         KClO4 s  →  K s  +  1/2 Cl2 g  +  2 O2 gThis is…

Q: formation

A: Standard change in enthalpy of the Reaction formula is :  ∆H°rxn = [ ∆H°(product) ] - […

Q: Calculate the enthalpy of reaction, ΔHrxn, for 2SO2(g) + O2(g) → 2 SO3(g) Given, S(s) + O2(g) →…

A: Given, S(s) + O2(g) → SO2(g) ΔH= −299 kJS(s) +3/2O2(g) → SO3(g) ΔHsol= −395 kJ Calculate the…

Q: Given these reactions, where X represents a generic metal or metalloid 1) H, (g) + 0,(g) → H,O(g)…

A: Given,

Q: Calculate the standard enthalpy change for the reaction 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s)…

A: The question is based on the concept of Hess's law.     It states that the net enthalpy change…

Q: The standard enthalpy change for the following reaction is -56.0 kJ at 298 K. Na(s) + 1/2 H₂(g)…

A: Important points needs to be remember for enthalpy change If a given chemical reaction is reversed…

Q: Given the following reactions               Fe2O3 (s)  +  3CO (s)  →  2Fe (s) +  3CO2 (g)      ΔH =…

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Q: 2. Using Hess's Law, Calculate enthalpy change for: NO (g) + 2 O₂ (g) → NO₂ (g) Given the following…

A: As per Hess's law , the enthalpy change will be constant whether reaction takes place through the…

Q: The standard enthalpy change for the following reaction is -112 kJ at 298 K. 2 Na(s) + H2(g)…

A: The standard enthalpy change for this reaction at 298 K has to be determined

Q: Determine whether the reaction is exothermic or endothermic based on the enthalpy change of the…

A: consider the chemical reaction as, For a chemical reaction, the difference between the total amount…

Q: Given that: A(s) + B2(g) – AB2(g) AH = -242.3 kJ/mol A(s) + 3/2 B2(g) →AB3(g) AH = -319.1 kJ/mol…

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

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Q: Determine the enthalpy of reaction for 2CH4(g) → C2H«(g) + 2H2(g) using the equations: 2C2H6(g) +…

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Q: What is the enthalpy change for the first reaction? Fe2O3(s) → 2Fe(s) + 3/2O2(g) ΔH =  4Fe(s) +…

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Q: Given the enthalpies of reaction.    P4 (s)  +  3 O2 (g)  → P4O6 (s)                        ΔH =…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: What is the enthalpy of the reaction, ΔH, for the formation of CO (g) from O2(g), oxygen, and C(s),…

A:

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.