Is the reaction of ClF(g) + F2(g) → ClF3(g) endothermic or exothermic?

Q: Given 2CuO (s) → 2Cu (s) + O2 (g) AH= 314.6 kJ. Determine the heat of formation of CuO (s).

A: Heat of formation, also called standard heat of formation, enthalpy of formation, or standard…

Q: Which process is endothermic? Melting of ice Condensation of water vapor O Combustion of magnesium O…

A: Endothermic reactions are the reactions in which heat is absorbed during the course of the…

Q: What is meant by the standard enthalpy of formation?

A: The difference in enthalpy during formation one mole of desired compound from its reactant elements…

Q: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or…

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Q: For the reaction N2(g) + O2(g) = 2NO(g), ∆H0 = 180.5 kJ. How much energy is needed to generate 35…

A: For a chemical reaction, the enthalpy of reaction (ΔHrxn) is the difference in enthalpy between…

Q: 7. Which statement is supported by the chemical equation Zn + 2HCI → H2 + ZnCl2 + energy? A. The…

A: 1. Enthalpy of any reaction is defined as the change in total energy, when reactant converts into…

Q: Consider the reaction N2(g)+3H2(g)→2NH3(g),N2(g)+3H2(g)→2NH3(g), ΔHΔH =−92.3kJ mol−1=−92.3kJ mol−1…

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Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 308. kJ during a…

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Q: AH = -296.83 kl <= (6)20+ (SIS SO2(g) calculate the reaction enthalpy for 202(g) +2 S(s) 2502@)

A: Enthalpy of the reaction can be described as the amount of heat absorbed or evolved in the chemical…

Q: chemical industry. Seashells or chalk (limestone) are roasted in kilns to produce CaO (quicklime).…

A: Generally decomposition reactions are endothermic as heat is required to break the bonds while…

Q: Exothermic or endothern 2 CO (g) O, (g) → 2 CO, (g)

A: 2CO (g)    →      2 C(s) + O2 (g) C (s) +  O2  →       CO2 (g) ------------------------------------…

Q: 2H20(g) + heat 2H2(g) + 02(g) This => reaction is endothermic. Select one: O True O False

A: On the basis of heat released or gained, there are two types of reaction namely exothermic and…

Q: If AH = -54.74 kJ for a chemical reaction, that reaction O is endothermic cannot occur is exothermic

A: In endothermic reaction heat is require while in exothermic reaction heat is given off.

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: what is the standard enthalpy change for the reaction: (3) C2H4(g) + H2(g)C2H6(g) AH° = ?

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Q: A 7.47 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: 3. The illustration below graphs energy during the formation of a covalent bond. Where can you…

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

Q: Using bond energies determine the heat generated when 32 grams of methane, CH4, is burned.  (in kJ)…

A: The reaction taking place is given as, =&gt; CH4 + O2 ------&gt; CO2 + H2O  Given: Mass of CH4…

Q: When 2.0 mole of ZnO(s) decomposes to Zn(s) and O2 (g), the Δ H = 696 kJ of heat energy. What does…

A: Reaction involved:-  2ZnO(s) = 2Zn(s) + O2 (g)  ∆H = 696 kJ

Q: For items 4-5. Identify if the reaction is exothermic or endothermic. 4. At 0°C and a pressure of 1…

A: Exothermic reactions are those reactions in which heat is released. The value of heat change is…

Q: Give two examples of reactions which are driven by enthalpy change.

A: The two examples of reactions which are driven by enthalpy change are given as,

Q: Octane (C8H18) is a component of gasoline and combusted according to the reaction below. Is the…

A: 2C8H18(l) + 25O2(g) ....&gt; 16CO2(g) + 18H2O(g)  Change in heat energy = -10860KJ  Given Mass of…

Q: A compound such as calcium carbonate can decompose by absorbing energy. This reaction can be written…

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Q: 2NO2 (g) ↔ N2O4 (g) 30 mL of NO2 gas is compressed in a syringe to 15 mL. Is this reaction…

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Q: When the fuel mixture contained in a 1.51 L tank, stored at 746 Torr and 298 K, undergoes complete…

A: Volume of container = 1.5 L                    Pressure = 740 torr…

Q: For which of the following statements are correct for the reaction. 2NO2(g)——H2(g) + 2O2(g) + 66.4…

A: The correct option is as follows:

Q: 9:15 Part 1 Several chemical reactions happen in bioluminescent algae. One of the most important is…

A: If energy is absorbed during a process, then reaction is endothermic and if energy is released…

Q: Determine the enthalpy for this reaction: Express your answer in kilojoules per mole to one decimal…

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Q: What are the assumptions that are made when performing calorimetry to determine molar enthalpies?…

A: Calorimeter :  A calorimeter is a insulated device used for heat measurements. It mainly consists of…

Q: Consider this reaction: 2CH3OH(l) +  3O2(g)  →  4H2O(l) + 2CO2(g)   ∆H = –1452.8 kJ/mol Is this…

A: Given, thermochemical equation is: 2CH3OH(l) +  3O2(g)  →  4H2O(l) + 2CO2(g)   ∆H = –1452.8 kJ/mol…

Q: How much energy is released when 8.1 g of water is heated from 12 °C to 18 °C? 203.3 J 203.3 kJ…

A: We have to calculate how much energy

Q: Is this reaction exothermic, endothermic, or neither? O endothermic O neither If you said the…

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Q: 4. How do you know if a reaction is endothermic'?

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Q: How much energy is required to change 50.0 g of water form 20.0oC to 75.0 oC

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Q: .a Explain why the bond enthalpy of a molecule is usually defined in terms of a gas- phase reaction.…

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Q: 3. For which of the following statements is correct for the reaction 2NO2(g)→H2(g)+202(g)+66.4kJ A.…

A: In this reaction the sign convention of change in enthalpy is positive which means the energy is…

Q: 2SO2(g) + O2(g) → 2SO<(g) DH= -198.2 kJ/mol Calculate the heat evolved when 87.9 g of SO2 (molar…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: Consider the following chemical reaction between component A and B: A(?) + 2B(g) → C(g)+ 3D(l)…

A: Answer( A). If ΔH is negative, the reaction is exothermic; if ΔH is positive, the reaction is…

Q: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or…

A: Reaction :- KCl (s) -&gt; K+ (aq) + Cl- (aq) Mass of KCl added or used = 11.8 g  Moles of KCl = mass…

Q: 2. A 35 g metal ball made up of a mixture of element X and element Y is heated up to 77C and dropped…

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Q: The following reaction is exothermic. MgO(s) → Mg2*(g) + O² (g) O True O False

A: The reaction taking place is given as, =&gt; MgO (s) -------&gt; Mg2+ (g) + O2- (g)

Q: Consider the following equation:        2C2H2(g) + 5O2(g) ->4CO2(g) + 2H2O(g) + energy        (a)…

A: as per Q&amp;A guidelines of portal I solve first question because it comes under multiple question…

Q: An exothermic reaction liberates 7.58 kJ of heat in a coffee cup calorimeter containing 157 grams of…

A: A 157 grams solution has a specific heat of 4.184 J/g ◦C and temperature of the solution is…

Q: 3. If you hold 3 grams of ice in your hand at room temperature, your hand will become cold. a) Is…

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Q: CH, (g) 20, (g) CO, (g) + 2 H,0 (g) Exothermic or endothermic

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Q: An important reaction in the production of sulfuric acid is SO2 02 (g) → SO3 (g) Calculate the…

A: The enthalpy change (∆H) of a chemical reaction is mathematically expressed as:…

Q: A 5.43 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: Consider the following reaction: 2CH3OH (g) 2CH4 (g) + 02 (g) AH = 252.8 kJ. Atomic weights: C = 12…

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Q: 2 H,S (g) +3 0, (g) → 2 H,0 (1) + 2 SO, (g) Exothermic or endothermic

A: Hydrogen sulfide reacts with oxygen to form water and sulfur dioxide. The equation for the balanced…

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.