Determine how many kilojoules are absorbed when 339 g of Ca(OH)2 reacts via the following reaction: Ca(OH)2(s) → CaO(s) + H2O(1), AH =+65.3 kJ

Q: What is the kinetic energy of a baseball with a mass of 117.7 g traveling at a speed of 1.377 m/s?

A: Given, Mass of a baseball (m) = 117.7 g = 0.1177 kg Speed of a baseball (v) = 1.377 m/s Kinetic…

Q: Which number represents the enthalpy change in the reaction? 2 Reaction Coordinate 90 Potential…

A:

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: Calculate ΔH (in kJ/mol) for the reaction described by the equation. 6 NH3(g) + 4 O3(g) → 3 N2O(g) +…

A: Given Chemical reaction: 6 NH3(g) + 4 O3(g) → 3 N2O(g) + 9 H2O(l)

Q: How much energy will be needed or produced if 5.75 g of magnesium is used in the reaction: 2Mg) + O2…

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Q: How much heat (in kJ) is absorbed in the process of making 0.877 mol of CF, from the following…

A: The given chemical reaction is as follows,C(s)+2F2(g)→CF4(g)       ∆H° =141.3 kJmolnumber of moles…

Q: Consider the following reaction: 2 PbS (s) + 3 O2 (g) → 2 PbO (s) + 2 SO2 (g) AHxn = -827.4 kJ What…

A:

Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

A: Given: Volume of water = 25 mL of water density = 1.00 g/mL Temperature change= from 25 °C to 85 °C…

Q: In the following reaction, how many grams of CH3OH are required to produce 1.91 × 10³ kJ of heat? 2…

A:

Q: Determine how many kilojoules are absorbed when 312 gg of Ca(OH)2Ca(OH)2 reacts via the following…

A: Writing Balanced EquationCaOH2s→CaO+H2Ol                           ∆H=+65.3 KjAccording to…

Q: When 0.220 g of sodium metal is added to an excess of hydrochloric acid, 2290 J of heat are…

A: Given: 2 Na + 2HCl -----> 2NaCl + H2 when, mass of Na = 0.220g , heat released = 2290J

Q: The reaction between nitrogen and oxygen gases requires the absorption of 43 kJ of energy per mole…

A: Amount of heat absorbed During the reaction between nitrogen and oxygen is 43 KJ/mol We have to…

Q: Two solid fuel rocket boosters each containing 1.1 million pounds of fuel are utilized to propel the…

A: Given reaction; 3NH4ClO4(s) + 3Al(s) ----> Al2O3(s) + AlCl3(s) + 3NO(g)  + H2O(l)   + 2934.9KJ…

Q: How much heat (in kJ) is absorbed in the process of making 0.961 mol of CF, from the following…

A: Let's observe the reaction first Here 1 mole of C reacts with 2 moles of F2 to form 1 mole of CF4

Q: Using the balanced chemical reaction below, answer the following question: 2 HCI + Ba(ОН)2 BaCl2 + 2…

A: The number of moles of HCl in the solution of 216 mL of 0.21 M HCl is; nHCl=MHCl×VHCl=0.21 mol…

Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

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Q: How much heat is absorbed in the process of making 0.803 mol of CF4 from the following reaction? C…

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

Q: How much heat (in kJ) is absorbed when 24.0 g of Fe is produced according to the following equation?…

A: The balanced reaction is – 2Fe2 O3 aq →4Fe s+ 3O2gAbsorbed heat, ∆H = 824.2kJ

Q: How many moles of KCIO, must be reacted according to the following balanced chemical reaction to…

A: The given chemical equation: 2 KClO3 (s) → 2 KCl (s) + 3 O2 (g) 2 mol             2 mol        3 mol…

Q: The reaction between nitrogen and oxygen gases requires the absorption of 43 kJ of energy per mole…

A: The reactions in which heat energy is released from the system are known as exothermic reactions.…

Q: How Much Heat Will Be Released When 15.5 G Of Phosphorus Reacts With Excess Chlorine According To…

A: The answer to the following question is-

Q: Solve

A: Exothermic reactions:- The chemical reactions which proceed with the evolution of heat energy are…

Q: The reaction between nitrogen and oxygen gases requires the absorption of 43 kJ of energy per mole…

A: The balanced reaction taking place is given as, => N2 (g) + O2 (g) -----> 2 NO (g)…

Q: How many kilojoules are released when 124 g of Si reacts with chlorine?…

A: First convert mass into mole by dividing molar mass then calculate mole mole relationship to get…

Q: If 1.0 x 104 kJ of energy was absorbed during the reaction, how many grams of calcium carbide (MW =…

A: Balanced chemical equation: CaO + 3 C → CaC2 + CO            ΔH = 464.8 kJ  This suggests that the…

Q: Calculate the amount of heat released by a given reaction, causing the temperature of 500 mL water…

A: Volume of water = 500 ml Density of water = 1 g/ml Change in temperature = 5.2 ℃  Specific Heat of…

Q: Given the equation below, which of the following is true? 2 Mg(s) + O2(g) → 2 MgO(s) + 72.3 kJ 12.…

A: 2Mg + O2->2MgO+72.3KJ

Q: Which sample is most likely to undergo the smallest change in temperature upon the absorption of 100…

A:

Q: Calculate ΔH (in kJ/mol) for the reaction described by the equation. 4 NH3(g) + 7 O2(g) → 4 NO2(g) +…

A: The given reaction is: 4 NH3(g) + 7 O2(g) → 4 NO2(g) + 6 H2O(l)

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: Calculate ΔH (in kJ/mol) for the reaction described by the equation. 6 NH3(g) + 5 O3(g) → 6 NO(g) +…

A: Tha delta H represents the enthalpy change during the reaction. Now if the enthalpy change is…

Q: If 100.0 g of iron (s.h. =0.446) absorbs 12.5 kJ, how much will its temperature increase?

A: Given: mass of iron (m) = 100.0 g specific heat of iron (C) = 0.446 J/goC Heat absorbed (q) = 12.5…

Q: How much energy(kJ) is released when 3.50 moles of O2(g) react with iron?

A:

Q: How many moles of KCIO3 must be reacted according to the following balanced chemical reaction to…

A: The balanced reaction taking place is given as, => 2 KClO3 (s) -----> 2 KCl (s) + 3 O2 (g)…

Q: In the following reaction, how many moles of CH₃OH are required to produce -6.696 × 10³ kJ of heat?…

A: The reaction given is   2 CH₃OH (l) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O(g)…

Q: The reaction between nitrogen and oxygen gases requires the absorption of 43 kJ of energy per mole…

A: Given Reaction: N2(g) + O2(g) ------>2NO (g)          ΔH = 43 KJ/mol

Q: Determine the amount of heat (in kl) given off when 1.26 x 10'g of NO, ( Molar mass» 46 g/mole) are…

A: The reaction given is 2 NO (g) + O2 (g) ------> 2 NO2 (g)                                  ΔH =…

Q: How much heat (in kJ) is absorbed in the process of making 0.971 mol of CF4 from the following…

A: Carbon reacts with fluorine to form carbon tetrafluoride. The equation for the balanced chemical…

Q: a. Calculate the enthalpy of reaction for: 2 CO(g) + O2(g) → 2 CO2(g) b. If 18.5 grams of carbon…

A:

Q: How much heat is absorbed in the process of making 0.771 mol of CF4 from the following reaction? C…

A: Consider the given reaction. Cs+2F2g→CF4g

Q: If 200 kJ of heat are supplied, how many grams of NO can be produced? N2(g) + O2(g)→ 2 NO(g) AH =…

A:

Q: A The equation for the formation of nitrogen monoxide is N2(g) + O2(g) + 90.2 kJ → 2NO (g) a Is the…

A: Exothermic reaction :-  A reaction in which heat is released is known as exothermic reaction For…

Q: How many moles of KCIO, must be reacted according to the following balanced chemical reaction to…

A: 1) Write the balanced chemical equation. 2) Compare the number of moles of reactant with the amount…

Q: What mass of O2 in grams can be produced when 250.0 kJ of heat was supplied? (MM O2 = 32.00 g/mol)…

A:

Q: 2. What quantity of heat is associated with the synthesis of 35.6 g of NH3 according to the…

A: Nitrogen oxide reacts with water to form ammonia and oxygen. According to the given reaction when…

Q: C. Ex: Calculate the heat produced by reacting 12.6 g of hydrogen peroxide, H,02. 2 H2O2(aq) → 2…

A:

Q: C2H5OH + 302 → 2CO2 + 3H20 AH=1367KJ/mol How many grams of carbon dioxide are produced when 370. kJ…

A:

Q: The reaction N2(g) + 3H2(g) --> 2NH3(g) at 400.0°C has an associated heat of reaction -92.22 kJ/mol.…

A: The given chemical reaction is as follows: N2(g) + 3H2(g) → 2NH3(g)                    ∆Hr=-92.22…

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 is liberated at constant pressure if 0.938 g of calcium carbonate reacts with 73.2 mL…

A: Since molar mass of calcium carbonate = 100 g/mol Hence moles of calcium carbonate = mass / molar…

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.