Determine AHorxn for the decomposition of the following reaction: 2NOC1(g) N2(g) +0,(g) + Cl, (g) AHrxn = kJ

Q: o form H3PO4(aq) according to the following equation,

A: When one mole of P4O10(s) react with 6mol of H2O(l) then energy is evolved NOTE : When energy is…

Q: Given the standard enthalpy changes for the following two reactions (1) 4C(s) + 5H2(g)–C,H10(g) AH°…

A: If the given reaction is multiplied by 2 by two, then value of the given standard enthalpy change…

Q: 250.0 mL of 0.300 M HCl is added to 250.0 mL of 0.300 M NaOH in a coffee cup calorimeter. The…

A:

Q: Given the reactions, X(s) + 0,(g) → XO(s) AH = -765.9 kJ XCO,(s) → XO(s) + CO,(g) AH = +112.9 kJ…

A: The reactions given are 1) 2)

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: Given, Step 1: CaC2(s)+2H2O(g)→C2H2(g)+Ca(OH)2(s)       ∆H=-414 kJ   Step 2:…

Q: Calculate the internal energy change for each of the following. (a) One hundred twelve (112) joules…

A:

Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

A: Please find the solution attached as handwritten note( as required ).

Q: 5.114 A 3.52-g sample of ammonium nitrate (NH4NO3)was added to 80.0 mL of water in a…

A: Given that : Mass of ammonium nitrate = 3.52g Mass of water = 80.0mL = 80.0g Change in temperature…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)–C¿H10(g) AH°…

A: Given  4C(s) + 5H2(g)  ------>  C4H10 (g)               ∆H°  = - 125.6 KJ       ( Equation 1 )…

Q: A chemist measures the enthalpy change AH during the following reaction: C6H12O6(s) 2 CO2(g) + 2…

A: The enthalpy change (ΔH) of a reaction is the amount of heat absorbed or released by the reaction.…

Q: The enthalpy change for the oxidation of butane, C4H10, is measured by calorimetry. C4H10 (g) + 13/2…

A:

Q: Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) AH° = ??? k.J %3D Given the…

A: Enthalpy of a reaction = Heat of combustion of products - Heat of combustion of reactants Enthalpy…

Q: 7.Heat is taken in by a system and work is done on the system by its surroundings. The internal…

A: The change in internal energy (ΔU) is given by ΔU = q + w where q = heat energy  w = work done

Q: Given the reactions, X(s) + 0,(g) → XO(s) AH = -797.5 kJ XCO, (s) XO(s) + CO,(g) AH = +179.5 kJ what…

A:

Q: How much heat is released or absorbed (in kJ) by the system in the reaction of 19.3 g of SF, with…

A: The balance chemical equation :  SF6(g) + 3H2O(l) ----> 6HF(g) + SO3(g)  The Standard heat of…

Q: Consider the decomposition of liquid benzene, C6H6 (), to gaseous acetylene, C2H2 (g) C6 H6 (1) →…

A: a) When a chemical reaction is reversed, the sign of enthalpy change of reaction also get reversed…

Q: An electron in an abm is hnow n to be in a stale m, -0. What 1s the with magnetic quantum number m,…

A: Dear student,  There are more than one question are asked with are independent of each other.  Since…

Q: The enthalpy of reaction for the combustion of C to CO2 can occur in two steps. (1) C(s) + O2(g) –…

A:

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: How many KJ of energy are released when 6.39 g of Fe reacts with excess O₂? Given the following…

A:

Q: Calculate the standard reaction enthalpy for the following reaction in KJ*mol. CH4(g) + H2O(g) -->…

A: Hess's law states that enthalpy change of reaction is independent of initial and final states. If…

Q: Reaction of hydrogen and nitrogen to form ammonia Hydrogen gas, H2H2, reacts with nitrogen gas,…

A: Part B: Determine the mass of NH3 produced from 2.19 moles N2: From the equation it is clear that…

Q: What is the standard enthalpy (in KJ) of formation for this reaction: Hint: balance the reaction…

A: Standard enthalpy of reaction is calculated as follows:

Q: ) Calculate the standard enthalpy of reaction 4 using the given data: A(g)+X2(g)⟶AX2(g)…

A: The Heat of Reaction (also known and Enthalpy of Reaction) is the change in the enthalpy of a…

Q: Consider the decomposition of liquid water, H₂O(1): (a) What is the enthalpy change for the reverse…

A: Given reaction of the decomposition of liquid water is  H2O (l) <=======> H2(g) + 1/2 O2(g)…

Q: 5b. The Standard Molar Enthalpy of Formation (AH° f ) of hydrogen cyanide, (HCN(g)), cannot be…

A:

Q: Calculate the standard enthalpy change for the reaction 2 Al (s) + Fe2O3 (s)  2 Fe (s) + Al2O3 (s)…

A:

Q: Calculate the standard enthalpy of formation of solid magnesium oxide (MgO) using the following…

A: For the formation of MgO(s) , we must get the following reaction  Mg(s) + (1/2) O2(g) ---->…

Q: 50.0 mL of 2.03 M NaOH(aq) is mixed with 50.0 mL of 2.20 M HCl in a Styrofoam calorimeter.…

A:

Q: Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

A:

Q: You mix 125 mL of 0.270 M CsOH with 50.0 mL of 0.675 M HF in a coffee-cup calorimeter, and the…

A: Given: 125 ml of 0.270 M CsOH 50 ml of 0.675 M HF Temperature T1 = 22.30 +273 = 295.3 K T2 = 25.42 +…

Q: A quantity of 50 mL of 1.50 M HCl was mixed with 50 mL of 1.50M NaOH in a constant-pressure…

A: Acid and base react to form salt, water, and heat. The heat released in this reaction is known as…

Q: Calculate the quantity of energy transferred (q), in kJ, by the combustion of 177 mL of acetone…

A:

Q: HCI(aq) + Ba(OH)2(aq) --> Bacl2(aq) + 2 H20(1) AH= -118 kJ Calculate the heat when 114.0mL of 0.50OM…

A: a)  Moles of HCl can be calculated as., 0.500 M HCl = 0.500 moles/ 1 L we have, 114 mL, which is…

Q: A chemist measures the enthalpy change AH during the following reaction: C6H12O6(s)-2 CO2(g) + 2…

A: The enthalpy change, ΔH, of a reaction is the amount of heat absorbed or released during the…

Q: Calculate AH for the reaction, C,H,(g) + H,(g) → C,H,(g) Given: (a) 2 C,H,(g) + 5 0,(g) →4 CO,(g) +2…

A:

Q: Use the standard reaction enthalpies given below to determine Hᵒrxn for the following reaction:…

A: Given,  N2(g) + O2(g) --------> 2NO(g)  ∆H°rxn= +183 kJ    1/2 N2(g) + O2(g) -------> NO2(g)…

Q: Dwayne Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

A: Multiplying first equation by 2, we have :  2CO2(g) + 6H2(g) = 2MeOH(l) + 2H2O(l) ∆H = -262 kJ…

Q: Hydrogen cyanide is used in the manufacture of clear plastic such as plexiglas. it is prepared from…

A: For per mole of given reaction means 2 mole of NH3 releases 948.4 KJ of energy.  So 1 mole of NH3 on…

Q: When chemical A and chemical B are mixed together, and endothermic reaction below occurs: 4A(aq) +…

A: Thus, Moles of C is produced: 0.0255 mol

Q: When 17.98 g of calcium chloride (CaCl2) is dissolved in 681.87 g of water in a coffee-cup…

A: Given: The mass of CaCl2 dissolved = 17.98 g The mass of water = 681.87 g The initial temperature =…

Q: Consider the following reaction. CH3OH(g)  CO(g) + 2 H2(g)    H = +90.7 kJ (a) Is the reaction…

A: Please refer to the next step for detailed solution:

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.