MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol-K)) CH3OH (1) -238.6 126.8 O2(g) 0 205.2 CO₂(g) -393.5 CO,(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 213.8 117.6 188.8 70.0 ▼ Part C Calculate ASxn at 25 °C. Express your answer in joules per kelvin to three significant figures. ASixn = Submit 15. ΑΣΦ Request Answer ? J/K

Q: What is the ΔSo for the combustion reaction of ammonia NH3(g) to nitrogen dioxide NO2(g) and water…

A:

Q: Calculate the AS° and AG° for the following reactions using values in the appendices. (a) 2 H2O2(1)→…

A: a) for the above reaction  2H2O2 (l) -------> 2H2O (l) + O2 (g) ΔG0 = 2 X ΔG0H2O(l)  + ΔG0O2  - 2…

Q: Using the following reactions: H 2 (g) +  F 2 (g) --> 2 HF (g)             ∆H = –537 kJ x   C (s)…

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Q: Calculate ΔSorxn for the reaction: 2 SO3(g) → 2 SO2(g) + O2(g)   ΔSo in J/mol K for: SO2(g) =…

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Q: Given the following: P(s) +50₂(g) →P4010(s) A Gº=-2697.0 kJ/mol 2H₂(g) + O₂(g) → 2H₂O(g) A…

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Q: Given that the reaction of 4 NH3 (g) + 5 O2 (g) 4 NO (g) + 3 H2O (g) AH = - 906 kJ What would AH for…

A: The correct option with explanation is provided in the next step:

Q: -778 KJ Use the following information to determine the enthalpy for the reaction shown below. CH4(g)…

A: To determine the enthalpy change for the given reaction, identify the reactants and products. In the…

Q: A 0.656-g sample of acetylsalicylic acid (C9H8O4) is burned in a bomb calorimeter and the…

A: The objective of this question is to calculate the change in energy (ΔE) for the combustion reaction…

Q: What is the standard enthalpy of formation of CaCO3(s)? CaO(s) + CO2(g)  →  CaCO3(s); ΔH° = -179.4…

A: The given data is as follows: CaO(s) + CO2(g) → CaCO3(s)                   ∆H°=-179.4 kJ/mol The…

Q: The heat combustion of acetylene, C2H2 (g), at 25°C, is -1299 kJ/mol. At this temperature, ∆H°f…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: Cl₂ is a stable diatomic molecule. It can be decomposed to form two Cl atoms as shown below. Cl₂ →…

A: The change in enthalpy of a chemical reaction explains the amount of heat released or absorbed in a…

Q: Given the following thermochemical equations: 2NO(g) + O2(g) --> 2NO2(g)      ∆H° = -113.2 kJ…

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Q: For the reaction H₂(g) + C₂H4 (9) → C₂H6 (9) AG = -97.5 kJ and AS° = -120.7 J/K at 327 K and 1 atm.…

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Q: The reaction of gaseous H2H2 and liquid Br2Br2 to give gaseous HBrHBr has ΔHΔH = -17.4…

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Q: The combustion of ethane, C2H6, has an enthalpy change of -2857.4 KJ for the reaction as written…

A: Given: Mass of C2H6 = 15g Enthalpy of reaction = -2857.3 KJ/mol

Q: What is the ΔH for the reaction below?    C2H2(g)  + 3 H2O(l) →  CH4(g) +  O2(g) +  CH3OH(l)…

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Q: Find the ΔH for this reaction :   3H2(g) +O3(g) --> 3H2O(g) Given the two following pieces of…

A: Given- 3H2(g) + O3(g) --> 3H2O(g)

Q: Data: ΔH°f values: CH4(g), -74.8 kJ; CO2(g), -393.5 kJ; H2O(l), -285.8 kJ. Using the ΔH°f data…

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Q: Compound SO; (g) SO: (g) NH3(g) NO (g) H₂O (g) Consider the following reaction at 25 °C: 5 SO3(g) +…

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Q: Green plants utilize sunlight to convert CO2 and H2O to glucose (C6H1206) and 02. Use the…

A: The question is based on the concept of chemical thermodynamics. We have to calculate the enthalpy…

Q: Methane-producing bacteria convert liquid acetic acid (CH3CO₂H) into CO₂(g) and CH₂(g). ΔΗ, Ο…

A:

Q: Find ΔHrxnΔHrxn for the following reaction: N2O(g)+NO2(g)→3NO(g)N2O(g)+NO2(g)→3NO(g) Use the…

A: If A+B →C+ D    ∆H=xthen C+ D →A+ B     ∆H=-xand2( A+B →C+D )    ∆H=2x

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

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Q: What is the energy required to evaporate two moles of liquid water given the following equations?…

A: The given two thermochemical reactions are  2H2 (g) + O2(g) →  2 H2O (g)                         ∆H…

Q: JLK/m 23. Nitric oxide reacts with chlorine to form NOCI. 1. 2NO(g) + Cl2(g) → 2NOCI(g) Substance:…

A: Step 1:Step 2: Step 3: Step 4:After rounding off△G=−10.6KJ/molTherefore, the correct option is…

Q: Gasoline is composed primarily of hydrocarbons, includingmany with eight carbon atoms, called…

A: a.

Q: 24) How much heat is released if 35.0 g of ethanol (C2H5OH) burns in excess oxygen? C2H5OH(+302(g) →…

A: The stoichniometry of the balanced chemical reaction states that when one mole of ethanol gas…

Q: Calculate the energy change (with the correct sign) when the temperature of 100.0 ml. of liquid…

A: Given data Volume of water = 100 mL Temperature increases ∆T=3.60 °C ∆Hsolution(NaCH3COO)=-989.5…

Q: Titanium(IV) oxide is commonly used as a white paint pigment. The compound is produced by the…

A: For a chemical reaction, the enthalpy of the reaction is the difference between products and the…

Q: Nitrogen ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) N2 (g) 0 0 191.6 N (g) 472.7…

A: Given, Moles of N2 = 1.590mol

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.