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: The thermochemical equation for the combustion of methanol is CH₂OH (g) + 3/2 0₂(g) → CO₂(g) + 2 H₂O…

A: To find kJ of heat, convert the given mass of methanol to moles. Then, multiply the obtained moles…

Q: The thermochemical equation for the combustion of methanol is CH3OH (g)  +  3/2 O2(g)  →  CO2(g)  +…

A: Here we are required to find the heat produced on burning 5 gm of methanol

Q: The heat of formation of Fe2O3(s) is -826.0 kJ/mol. Calculate the heat of the reaction 4Fe(s) +…

A: Given information,

Q: How much heat is absorbed or released when 40.00 g of NH3(g) reacts in the presence of excess O2(g)…

A: According to the question, The mass of the ammonia gas is given by =40.00 g The molar mass of the…

Q: The formation of rust (Fe2O3) from solid iron and oxygen gas releases -1.7  103 kJ. 4 Fe(s) + 3…

A:

Q: Pentaborane, B5H9, was once studied as a potential rocket fuel. Calculate the heat given off  when 1…

A: 2B5H9 + 12O2 ------> 5B2O3 + 9H20  Enthalpy of reaction  = Sum of enthalpies of products-sum of…

Q: the heat formation of feo2 is -826. calculate the heat of the reaction when a 43.20g sample of iron…

A: The balanced thermodynamical Chemical equation given in the question is - 2Fe + 3/2O2 ----->…

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: The following thermochemical equation is for the reaction of HBr(g) to form H₂(g) and Br2 (1).…

A: The given thermochemical reaction for the conversion of HBr(g) to H2(g) and Br2(l) is 2HBr(g)…

Q: Bas. C3H8(g) + 5 02(g) -> 3 CO2(g) + 4 H20(g) AHrxn = -2217 kJ How many grams of O2 gas (molar mass…

A: Given that -  Thermodynamical Reaction is -  C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g) , ∆Hrxn =…

Q: A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1)+O2(g) AH=…

A: Given reaction is, 2 HgO (s)  →  2 Hg (l) + O2 (g)                     ∆H = 182 kJ As,  ∆H is…

Q: if 11.2 g of H2 (g) (MM = 2.016 g/mol) were to react according to the balanced equation given below,…

A: We have to calculate the heat released amount.

Q: The following thermochemical equation is for the reaction of NH4Cl(s) to form NH3(g) and HC1 (9).…

A: When the energy is released in a reaction, then it is called as exothermic reaction. The sign of…

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

A: The given balanced thermochemical equation is 2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s), ΔH = -850 KJ…

Q: kJ

A:

Q: The enthalpy of combustion of methane gas is -890 kJ/mole. Write a balanced thermochemical equation…

A: Given, ∆H = -890 KJ/mol Mass of CH4 = 48 g

Q: • Write the thermochemical equation of the following reaction. The first one serves as an example.…

A: Exothermic reactions are those in which heat is evolved and endothermic reactions are those in which…

Q: In the following reaction, what is the quantity of heat (in kJ) released when 1.81 moles of CH4 are…

A:

Q: A chemist measures the energy change AH during the following reaction: C3Hg(g)+50₂(g) → 3 CO₂(g) +…

A: mass of C3H8 =  95.4 g

Q: The process of dissolving ammonium nitrate,NH4NO3, in water is an endothermic process. a)what is…

A: Given Mass of ammonium nitrate = 4.40 g Mass of water = 100 g Heat absorbed by NH4NO3 = 3.30*102 J/g…

Q: Consider the following reaction: 2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)    ΔH = -850 kJ What…

A: Given the chemical reaction as follows,2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)   ;  ΔH = -850…

Q: C₂H5OH + 302 2CO₂ + 3H₂O AH=1367kJ/mol How many grams of carbon dioxide are produced when 530. kJ of…

A: Ethanol reacts with oxygen to form carbon dioxide and water. The equation for the balanced…

Q: A chemist measures the energy change AH during the following reaction: C3H₂(g) +50₂(g) → 3 CO₂(g) +…

A: Exothermic reaction and endothermic reaction:Exothermic reaction : Exothermic reactions are reaction…

Q: The following thermochemical equation is for the reaction of CO(g) with O₂ (g) to form CO₂ (g).…

A:

Q: Sulfur trioxide reacts with water to form sulfuric acid, a major contributor to acid rain. One…

A: To find the heat of reaction for the given reaction can be found by adding the subreaction in such…

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

A:

Q: A chemist measures the energy change AH during the following reaction: 2 Fe₂O3(s)→ 4 FeO(s) + O₂(g)…

A: We have to predict the nature of reaction, heat absorbed, amount of heat absorbed.

Q: How much heat (in kJ) will be released (AH) if 0.4501 mol of NH3 are mixed with 0.200 mol of O, in…

A: Applying concept of limiting reagent and heat released.

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

A:

Q: A chemist measures the energy change AH during the following reaction: CH4(9)+20₂(g) → CO₂(g) +…

A: The given reaction is                               Mass of  reacted in the reaction = 37.8…

Q: We allow 81 g of oxygen to react with 66 g of ethane.  The reaction is shown below.  Since the heat…

A: Given that : The mass of oxygen = 81 g The mass of ethane = 66 g The reaction for the combustion of…

Q: Nitromethane (CH3NO2), sometimes used as a fuel in drag racers, burns according to the following…

A:

Q: need help with this chemistry

A: The definition of an exothermic reaction is one in which the system (where the reaction is taking…

Q: How much heat is evolved when 8.89x10° g of ammonia is produced according to the following equation?…

A:

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

A:

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.