For the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts?

Q: When 1 mol of NO(g) forms from its elements, 90.29 kJ of heat is absorbed. (a) Write a balanced…

A: Given: ∆H = +90.29 kJ Mass of NO = 3.50g Molar mass of NO = 30.01 g/mol

Q: C. How much heat is produced when 85 g of nitrogen reacts with excess hydrogen according to the…

A: Ans Balanced chemical equation N2 + 3H2 ------------------------> 2NH3 Given that H2 in excess to…

Q: The number of Calories in food items were originally determined by combusting the food, and…

A: Mass of banana used = 115 g Volume of water taken = 850.0 mL Increase in temperature of water =…

Q: How much heat will be released (AH) if 0.4501 mol of NH3 are mixed with 0.20 mol of O2 in the…

A:

Q: In the following reaction, how much heat is generated when 3.21 moles of CH4 are burned? CH4 (g) + 2…

A: CH4g+2O2g→ CO2g+2H2Og                       △ H = 802KJmolAs 1 mole of CH4 heat released =…

Q: Magnesium burns in air to produce a bright light and is often used in fireworks displays. The…

A: Given :-  2Mg(s) +O2(g) 2MgO(s)    ; ∆Ho = -1203 kJ  mass of Mg burns = 6.82 g  To calculate :-…

Q: If 0.251 grams of MgO were added to 24.8 mL of HCl (density = 1g/mL), use the graph collected below…

A: According to the given graph,  Initial temperature of HCl solution, Ti = 19.41 oC. Final temperature…

Q: A calorimeter is used to measure the heat transferred between objects or in a chemical or physical…

A: ASSUMPTIONS IN CALORIMETRY : 1. no heat is transferred between the calorimeter and the outside…

Q: Fill in the blank by the name of the definition: Heat of  __________ is the heat transferred when 1…

A: An acid reacts with base forming salt and water as the product.

Q: How much heat will be released (AH) if 0.4391 mol of NHs are mixed with 0.20 mol of O2 in the…

A: Change in enthalpy (∆H) is proportional to the number of moles of reactants and products associated…

Q: How many grams of C,H, liquid must decompose according to the following chemical equation to…

A: Given :-  C6H6(l) ---> 3C2H2(g)  ΔH = 630 kJ To calculate :-  Amount of C6H6 that will be…

Q: What is the heat of reaction and what is the difference between an endothermic and an exothermic…

A: The energy released or absorbed during a  chemical reaction is termed as the heat of reaction or…

Q: How much heat is released when 4.50 g of methane gas is burned in a constant-pressure system?

A: Given: Mass of methane = 4.50g To find: The amount of heat released

Q: How much heat will be released (AH) if 0.5387 mol of NH3 are mixed with 0.20 mol of O2 in the…

A:

Q: When a metal at a higher temperature is transferred to water at a lower temperature, heat is…

A: A calorimeter is a device used to determine the quantity of heat involved in the chemical or…

Q: How many moles of H₂ are required to produce -2051 kJ of heat in the following reaction? N₂ (g) + 3…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction is…

Q: How many moles of H2 are required to produce -2501 kJ of heat in the following reaction? N2 (g) + 3…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: How much heat will be released (∆H) if 1.20 mol of SrO is mixed with 0.951 mol of CO₂ in the…

A: Let x be the number of moles at CO2 required by 1.2 mol of SrO 1.2 mol of SrO requires 1.2 moles of…

Q: How much heat (in kilocalories) is released from the combustion of 5.00 g of ethanol?

A: The mass of ethanol given = 5.00 g The standard specific heat of combustion of ethanol is Hc = 7.1…

Q: When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced…

A: Given  When 1 mole of KBr(s) decomposes to its elements (K and Br) , 394 kJ of heat is absorbed.

Q: How many moles of H₂ are required to produce -3001 kJ of heat in the following reaction? N₂ (g) + 3…

A:

Q: When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced…

A: The thermochemical equation is that which explains the chemical reaction in terms of enthalpy…

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with O.20 mol of O2 in the…

A: Interpretation: The amount of heat released in the following reaction is to be determined. Reaction:…

Q: When 1 mol of NO(g) forms from its elements, 90.29 kJ of heat is absorbed. (a) Write a balanced…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: One mole nitrogen oxide, NO, reacts with oxygen gas to produce a brown gas, NO2. a. How many moles…

A: The standard enthalpy of reaction (∆Hr) is calculated as the difference of the sum of enthalpies of…

Q: 7. When 0.63 g of solid LiCI (AHsoln = – 37.1 kJ/mol) dissolves in 5 L of water, how much heat is…

A: Answer :-  Heat released (q) when 0.63 g LiCl dissolved in 5 L water = -552.8 (J) = -0.5528 (kJ)…

Q: if 124 KJ of heat is absorbed in a reaction that forms nitric oxide from nitrogen and oxygen what…

A: The following information given in the question - The heat absorbed for NO produced = 124 kJ   The…

Q: Heat energy of 566.0 kJ is absorbed when 2 mol carbon dioxide decomposes to carbon monoxide and…

A: When heat is released in the reaction, it is an exothermic reaction whereas if the heat is absorbed,…

Q: When calculating the heat of reaction why did we have to add C calorimeter   specific heat ?

A: A calorimeter is a device used to determine the quantity of heat involved in the chemical or…

Q: Consider the reaction: C3Hg(g) +5 02(9) 3 CO(9) + 4 H20(g), where AH= -531 kcal/mol. How much heat…

A:

Q: A 120 gram sample of gold absorbs absorbs 1.2 kJ of heat. How many much does the temperature of the…

A: Given: Mass of the sample= 120 g Heat absorbed= 1.2 kJ Specific heat capacity of gold= 0.129 To…

Q: the heat released for a complete reaction of 1 mole of carbon to 1 mole of carbon dioxide is 393kj.…

A: Given,  Given moles of carbon = 1 mole  Moles of CO2 = 1 mole  Amount of heat releases = 393 KJ…

Q: How many moles of H₂ are required to produce -3451 kJ of heat in the following reaction? N₂ (g) + 3…

A: We have given that N2(g) + 3H2(g) -----> 2NH3(g) ∆H = -91.8KJ/mole

Q: When 1 mol of potassium bromide, KBr(s), decomposes to its elements, 394 kJ of heat is absorbed. a)…

A:

Q: Write the thermochemical equation for: a. Heat energy of 849.0 kJ is absorbed when 2 mol carbon…

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

Q: For the reaction given in Part A, how much heat is absorbed when 3.30 mol of A reacts' Express your…

A: Interpretation- To calculate heat absorbed in a chemical reaction which is given in the question…

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

A:

Q: When 13.99 mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given data: Volume of HCl used = 13.99 ml Volume of NaOH used = 15 mL Concentration of NaOH = 3.172…

Q: Use the data in the following image to answer this question. a.The reaction involved the…

A: Given: HCl is the limiting reagent. Moles of HCl =0.0600 mol ΔT =4.75oC Heat capacity = 3.97 J/g…

Q: How much heat will be released (AH) if 0.6461 mol of NH3 are mixed with 0.20 mol of O2 in the…

A: Hello. Since multiple questions have been posted, the first question shall be only solved in this…

Q: In the following reaction, how much heat is generated when 2.81 moles of CH4 are burned? CH4 (g) + 2…

A: The complete balanced equation of burning of CH4 is as follows: CH4(g)+2O2(g)→CO2(g)+2H2O(g)

Q: How many kilojoules of heat are produced when 34.0 g of Fe2O3 reacts with an excess of CO according…

A: In this question, we want to determine the value of heat produced in kJ unit. How we can determine,…

Q: .A sample of solid sodium was reacted with chlorine gas to give 4.36 g of pure NaCl.  The energy…

A: Heat of formation of a compound is the heat change when one mole of that particular compound formed…

Q: Consider the combustion of in oxygen gas to produce carbon dioxide gas and water vapor. In an…

A: if 4790J energy absorbed by water that means energy is released by this combustion reaction. And…

Q: What is the thermochemical equation. Formation of carbon dioxide gas from carbon (graphite) and…

A: The balanced chemical equation with the description of physical states and the amount of energy…

Q: For the reaction shown, compute the theoretical yield of the product in moles for each of the…

A: The balanced chemical equation is given below.

Q: How much heat will be transferred when 14.9 g of ammonia reacts with excess oxygen according to the…

A:

Q: Heat energy of 566.0 kJ is absorbed when 2 mol carbon dioxide decomposes to carbon monoxide and…

A: A chemical equation represents the chemical change taking place in the reaction. The reactants…

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.