The following thermochemical equation is for the reaction of bromine trifluoride(g) to form bromine(g) and fluorine(g). 2BRF3(g)- Br2(g) + 3F2(g) AH=542 kJ How many grams of BrF3(g) would be made to react if 105 kJ of energy were provided? grams

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Molar mass of CH3OH = 32.042 g/mol  Formula used :  Mass of CH3OH = Number of moles of CH3OH X Molar…

Q: Given the following thermochemical equations, AH° = -1132 kJ 4NH3(g) + 702(g) → 4NO2(g) + 6H2O(3)…

A: To calculate the ∆Ho for the given reaction , by using the given ∆Ho for above two reactions , we…

Q: The following thermochemical equation is for the reaction of water(l) to form hydrogen(g) and…

A: The given reaction is, 2H2O(l) ---> O2(g) + 2H2(g) ........∆H = 572 kJ 572 kJ energy provided for…

Q: The following thermochemical equation is for the reaction of nitrogen(g) with hydrogen(g) to form…

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Q: For the following thermochemical equation, CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)        ΔH = –890 kJ…

A: Given reaction: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l). ∆H = -890 kJ. So, 890 kJ of heat is released…

Q: Most ethylene (C2H4), the starting material for producing polyethylene, comes from petroleum…

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Q: (Q11) Ammonia reacts with oxygen according to the following balanced chemical equation 4 NH3 (g) + 5…

A: Heat can be calculated by using unitary method.

Q: The following thermochemical equation is for the reaction of nitrogen(g) with oxygen(g) to form…

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Q: What is the enthalpy, dH, when 176.1 g NiO reacts with unlimited sulfur dioxide in the following…

A: A numerical problem based on thermochemical reaction, which is to be accomplished.

Q: Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and…

A: Enthalpy of reaction (∆ Hrxn): The difference in the enthalpies of reactants and products.

Q: The following thermochemical equation is for the reaction of nitrogen(g) with hydrogen(g) to form…

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Q: The following thermochemical equation is for the reaction of ammonium nitrate(s) to form dinitrogen…

A: Given: The given reaction and its energy is,

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Required amount of reactant calculation to produce given amount of heat using the given value of…

Q: Consider the combustion of butane: 2C4​H10​(g)+13O2​(g)-->8CO2​(g)+10H2​O(l), ΔHrxn = −2878 kJ/mol…

A: The enthalpy of combustion of a substance indicates the enthalpy change produced as a result of the…

Q: Consider the reaction:  2SO2​(g)+2H2​O(l) --> 2H2​S(g)+3O2​(g), ΔHrxn​=1124 KJ/mol How many moles…

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Q: Consider the following balanced thermochemical equationfor a reaction sometimes used for H₂S…

A: Reactions are classified as exothermic and endothermic depending on whether these are associated…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A: Given: Heat energy produced due combustion of methanol = -515 KJ ΔH = -764 KJ/mol Molar mass of…

Q: The following thermochemical equation is for the reaction of bromine trifluoride(g) to form…

A: The balanced reaction taking place is given as, => 2 BrF3 (g) ----> Br2 (g) + 3 F2 (g)…

Q: What is the maximum amount of heat (in kJ) that can be released when 27.2 g of hydrogen sulfide gas…

A: Given mass of H2S = 27.2 g molar mass of H2S = 34.1 g/mol

Q: When ammonia (NH3) and oxygen react at a temperature at which both compounds are in the gaseous…

A: When balanced reactions are represented including phases of all species as well as energy change,…

Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: A numerical problem based on the heat energy released, which is to be accomplished.

Q: The following thermochemical equation is for the reaction of iron(s) with chlorine(g) to form…

A: You have given the chemical reaction - 2Fe + 3Cl2  => 2FeCl3            dH = -799 KJ

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: We have to calculate the amount of heat released and limiting reactant.

Q: Given the following thermochemical equations: 2NO(g) + O2(g) –→ 2NO2(g) AH° = -113.2 kJ %3D 2N,0(g)…

A: Calculate change enthlpy of the given reaction above----

Q: 1) An oxyacetylene torch is a tool that mixes and burns oxygen and acetylene to produce an extremely…

A: The combustion reaction of acetylene gas is represented as follows: 2C2H2(g) + 5O2(g)  →  4CO2(g) +…

Q: he following thermochemical equation is for the reaction of ammonium chloride(s) to form ammonia(g)…

A: We have to determine Grams of NH4Cl would be made to react if 50.7 kJ of energy were provided

Q: mass of carbon dioxide

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Q: Balance the following reaction and then answer the questions. _____H2 + _____Br2 + 72.8kJ → _____HBr…

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Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: The combustion of methanol in the presence of oxygen can be expressed by the following chemical…

Q: Given the following thermochemical equations (in the picture), 1. Calculate the value of Ho (in…

A: The reactions given are, The reaction for which we want to find ΔHo is, => 12 Cl2 (g) + NaBr (s)…

Q: Propane, C3H8 (approximate molar mass = 44 g/mol) is used in gas barbeques and burns according to…

A: Given: Combustion reaction of propane (C3H8) as follows: C3H8 (g) + 5 O2 (g) → 3CO2 (g) + 4H2O (g)…

Q: The following thermochemical equation is for the reaction of nitrogen(g) with hydrogen(g) to form…

A: there are two kinds of property extensive property which depend on the number of particle and…

Q: Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical…

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Q: The following thermochemical equation is for the reaction of water(l) to form hydrogen(g) and…

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Q: pt of The following thermochemical equation is for the reaction of hydrogen sulfide (g) with…

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Q: The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium…

A: The balanced reaction taking place is given as, => 2 Na (s) + 2 H2O (l) --------> 2 NaOH (aq)…

Q: Q9 a)The following thermochemical equation is for the reaction of hydrogen bromide(g) to form…

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Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with chlorine(g) to…

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Q: Methanol is used to heat food. The combustion of methanol can be described by the following…

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Q: The following thermochemical equation is for the reaction of hydrogen chloride(g) with ammonia(g) to…

A: One mole of HCl reacts with one mole of ammonia to form one mole of ammonium chloride. In this…

Q: The reaction of carbon(s) with oxygen (g) to form carbon dioxide(g) proceeds as follows:…

A: In this question, we will determine the change in enthalpy ∆H for the given chemical equation.  You…

Q: A chemist measures the energy change AH during the following reaction: 2 H₂O(1)→ 2 H₂(g) + O₂(g) ΔΗ=…

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Q: The following thermochemical equation is for the reaction of ammonium nitrate(s) to form dinitrogen…

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Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with oxygen(g) to…

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Q: When methanol, CH3OH,CH3OH, is burned in the presence of oxygen gas, O2,O2, a large amount of heat…

A: Given: mass of methanol =22.9 g           mass of oxygen = 35.6 g To find: the Amount of heat…

Q: When N2(g) reacts with H2(g) to form NH3(g) , 92.2 kJ of energy are evolved for each mole of N2(g)…

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Q: When 0.5 mol of H2 is reacted with 0.5 mol of O2, 121 kJ of heat is released. Determine ΔHrxn for…

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Q: One origin of SO3 is the combustion of sulfur, which is present in small quantities in coal. S(s) +…

A: Given the formation of SO3(g) from sulfur, and combustion enthalpy ofsulfur and sulfur dioxide.we…

Q: Methanol (CH3OH), which is used as a cooking fuel, burns in oxygen to produce carbon dioxide and…

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Q: Carbon disulfide reacts with chlorine according to the following reaction equation: CS2(8) + 3…

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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.