8. Given the following data: 1 O So + à SO ) AH= -395.2 kJ à 2SO AH=-198.2 kJ Calculate: S à SO2)

Q: If the following enthalpies are known: A+ 2 B- +2C + Donding AH = - 95KJ B+X C AH = + 50kJ %3D What…

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

Q: falauing a) Haw maney moes of water are praduced fram the reaction, when 275 kj of enerey is given…

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

Q: 1) Calculate the enthapy for the folowing reaction: Na(g) + 20(g) -> 2NO:(g) AH ??? kJ Using the…

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Q: : Calculate the heat of formation of benzene 15 C,H,(1) +02(9) → 6C0,(g) + 3H,0(1) 2 from the…

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Q: Consider the following chemical reaction: C5H12(l) + O2(g) ------------> CO2(g) + H2O(g) Calculate…

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Q: Which of the following is a statement of Hess's law? O The AH of a reaction depends on the physical…

A: Hess's Law - If a reaction is carried out in multiple steps then the change in enthalpy of reaction…

Q: AH° for the following chemical reactions are: so, (8) + H;O(1) → H;SO, (1) Bao (s) + so, (8) → Baso,…

A:

Q: Calculate how much heat 32.0g of Iron (Fe) absorbs when it is heated from 25oC go 80oc. How many…

A: Heat is absorbed by a system to raise its temperature. During this process there can also be a…

Q: For the reaction below, determine the difference in relevant particles that allow for determination…

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Q: Calculate the AH for the reaction: CH4 (g) +4 Cl2 (g) → CCl4 (g) + 4HC1 (g) using the standard…

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Q: 13.4gof NH4Clis dissolved in 150mLof water in a coffee-cup calorimeter, and the temperature of the…

A: moles of NH4Cl = mass / molar mass of NH4Cl                           = 13.4 g / 53.5 g/mol…

Q: ₂0 and 0.444 J/g.°C for Fe. eat capacity of the calorimeter = 3/°C

A: The calorimetry rule says, Heat lost by iron = Heat gained by calorimeter + water Heat lost=mc∆T…

Q: Given the following thermochemical equations: S(s) + O2(g) SO29) AH= -297 kJ 2S(s) + 302(9) 2SO3(9)…

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Q: , When 25.0 mL of 1.00M HNO3at 25.0oC is added to 25.0 mL of 1.00M KOH at 25.0oC in a coffee cup…

A: The reaction of acid and base results in the formation of salt and water and heat is evolved. This…

Q: A piece of unknown solid substance weighs 439 g, and requires 8427 J to increase its temperature…

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Q: The value ΔH0 of for the reaction 2Ba(s) + O2(g)→ 2BaO(s)is -1107 kJ. Determine the heat released…

A: The enthalpy of a reaction is the heat that is released or absorbed in a chemical reaction that…

Q: Consider the balanced reaction 3 A + 7 B -→ 8 C + 6 D and the enthalpies of formation provided in…

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Q: (e) Coal gasification converts coal into a combustible mixture of carbon monoxide and hydrogen,…

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Q: Consider the following chemical reaction: C5H12(l) + O2(g) ------------> CO2(g) + H2O(g) Calculate…

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Q: I was previously told that this could not be solved becuase the enthalpy of formation of Barium…

A: The given reactions are rewritten as follows:

Q: 3. Calculate AH at 25°C for the reaction of 1.0 mole of Carbon with excess Carbon Dioxide to produce…

A: Given,                    C +     CO2                  2 CO Temperature = 25◦ c The enthalpy of…

Q: Estimate AH for the reaction. нн H. H-N-N-H+ Cl-Cl 2H-Ń-CI Express your answer using one significant…

A: bond energy of N-H = 391 kJ/mol bond energy of N-Cl = 200 kJ/mol bond energy of N-N = 163 kJ/mol…

Q: The AH° of the reaction is -1367 kJ. Calculate the work done on the system at 25°C. C2H5OH(1) +…

A: Work done (w) : w = -∆ngRT  w = - ( 2 - 3) x 8.314 x 298  w = 2477.572 J w = 2.48 kJ

Q: Formation Enthalpies (kJ/mo) CHs (g) -103.8 0 (g) CO2 (g) H2O (s) -393.5 -285.8 21- Using the table…

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Q: 15.5a of an nknown. metal at 8l6.30°C .5 placed.in 50a at 7.60°C, The waters temparature is measured…

A: Given mass of unknown metal = 15.5 g Initial temperature of metal = Ti = 86.30 0C Final temperature…

Q: Use Hess's Law to calculate the enthalpy change for the reaction BaCOy(s) → BaO() + COg) from the…

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Q: The value of ΔH° for the reaction below is -1271 kJ: 2Ca (s) + O2 (g) → 2CaO (s) How many kJ of…

A: Given: The reaction is as follows, 2Ca(s)+O2(g) → 2CaO(s) Change in enthalpy of the given reaction…

Q: A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 ml of 0.200 M aqueous…

A: ∆H=-qn where q=heat of reaction,n=moles of Hclbut…

Q: 50. Calculate AH for the reaction: NO+ O@ J NO) I NO28) Given the following information... 203(g) 3…

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Q: Given that O(g) + e¯ O(g) + 2e → O²-(g); AH = 702 - 0 (g); AH = -142 kJ; kJ; the enthalpy change for…

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Q: 9. Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction…

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Q: Given the following data   Calculate ΔH for reaction   On the basis of the enthalpy change, is this…

A: Answer is explained below.

Q: If AGº is 137.1 kJ, ASº is -0.9 kJ/K and the T is 74.4 degrees celcius, find AH° is {enthalpy} kJ of…

A: Given information,      ∆G0 = 137.1 kJ∆S0 = -0.9kJ/KT = 74.40C = 347.55 K

Q: The value of the enthalpy of the reaction for a reaction is equal to 200 KJ / mol at 25 °C, then the…

A: Enthalpy of the reaction at 25oC = 200 KJ/ mol…

Q: what is the enthalpy change for the reaction Ba Halg) +30al9) 7 B,03(5) +3H,041) AH=? a.) -239 HJ…

A: The balanced reaction taking place is given as, => B2H6 (g) + 3 O2 (g) ----------> B2O3 (s) +…

Q: A certain hydrocarbon of the molecular formula C,H2, has a standard enthalpy of formation AH =…

A: Complete combustion of alkene produces CO2 and H2O

Q: Using the equation shown: 7A + 5B ® 3C + 4D, and the standard enthalpies of forma AH°F: A: 15.7…

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Q: The value of AH° for the reaction below is - 790 kJ. The enthalpy change accompanying the reaction…

A: Given: ∆Ho=-790 kJ Mass of S = 0.95 g Known: Molar mass of S = 32 g/mol

Q: Calculate AH for each of the following reactions (use the data in Appendix II): (a) 2 CH10 (g) + 13…

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Q: 11. 2Cr2O3(s) → 4Cr(s) + 302(g) AH° = +2269.4kJ (a) What is the heat of formation of chromium (III)…

A: Given reaction: 2Cr2O3 (s) → 4Cr (s) + 3O2 (s)    ∆H∘ = +2269.4 kJ We have to calculate the heat of…

Q: Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of…

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Q: 20,(g) –→ 30,(g) AHxn = +24.18 kJ 1st attempt See Periodic Table Determine the value of heat of…

A: On adding two reactions we get a third reaction and enthalpy change for third is sum of first two…

Q: Determine the standard enthalpy of reaction, AH°n, of the reaction below, given the following…

A: Mg(s) + 2H2O(l) ---> Mg(OH)2(s) + H2(g)

Q: Fe O3(s) + 3CO(g) → 2Fe(s) + 3CO;g); AH® = -26.8 kJ %3D FeO(s) + CO(g) -Fe(s) + CO2(g); AH° = -16.5…

A: The given equations are Let us number the final equation to be number 3.

Q: (a) Magnesium reacts with hydrochloric acid to produce hydrogen gas. AH, for HCI(aq) = -167.16…

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Q: Given: 4AICI3(s) + 302(g) → 2Al,O3(s) + 6C12(g); AH=-529.0 kJ determine AH for the following…

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Q: 3. Given the following thermochemical data C(s) + ½O2(g) → CO(g) AH, = -111 kJ/mol C(s) + O2(g) →…

A: We have delta H value of two reaction, we have to calculate the delta H value of a new reaction .

Q: If AH for the reaction 2 HgO → 2 Hg (1) + O2 (g) is 181.66 kJ, (s) then AH for the reaction Hg (1) +…

A: given : 2 H2O(s) → 2H2 (l) + O2(g) ∆H = 181.66 KJ To find : Entharpy of the reation of H2(l) + ½…

Q: 19 Calculate AH" and AE" for the following reactions at 25 °C. Use standard enthalpies of formation…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

Q: Calculate the ΔGo for a reaction, given the ΔHo for the reaction = -5052.8 kJ  and the ΔSo for the…

A: Recall the following expression to calculate∆G° as follows                    ∆G°=∆H°-T∆S°Given…

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.