Given: 2NH3(g) + 3N20(g) → 4N2(g) + 3H20(1) ....AH1 = -1010 kJ 4NH3(g) + 302(g) → 2N2(g) + 6H2O(1) .....AH2 = -1531 kJ The enthalpy change for the reaction: N2 + 1/202 → N20(g) is: - 510.3 kJ + 81.5 kJ - 815.0 kJ O- 303.3 kJ O+ 207.0 kJ

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for…

A: The change in enthalpy of a reaction is used to determine the endothermic reaction or exothermic…

Q: In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH), was added to 60.0 mL of 0.620 M HCI.…

A:

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: The standard enthalpy of formation of NH,Clsg is -315.4 kJ/mol. The equation that describes this AH°…

A:

Q: In a constant-pressure calorimeter, 50.0 mL of 0.320M Ba(OH), was added to 50.0 mL of 0.640 M HCI.…

A: Given that : Volume of Ba(OH)2 solution = 50.0 mL Concentration of Ba(OH)2 = 0.320 M Volume of HCl…

Q: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) --> HCN (g) +3H2 (g) from the…

A: Answer:- this question is answered by using the simple concept of Hess law of constant summation of…

Q: The standard enthalpy of formation of NH4Cl is-315.4 kJ/mol. The equation that describes this AH°is

A:

Q: that are displayed. The reaction that was on the screen when you started and its derivative…

A: Given reaction 1: C3H8(g) + 5O2(g) -----> 3CO2(g)+ 4H2O(g)  ΔH1 = -2043 kJ Since ΔH is an…

Q: Using the equations N2 (g) + O2 (g)→ 2 NO (g) AH° = 180.6 kJ/mol N2 (g) + 3 H2 (g) → 2 NH3 (g) AH° =…

A: Determine the enthalpy of the given reaction by,         Multiply the first equation by 2…

Q: What is the enthalpy change for producing 1.00 kg of acetic acid by this reaction?

A:

Q: KBr dissociates in water according to the following equations: KBr(s) --> K+(aq) +Br-(aq) a) 10.5g…

A:

Q: In a constant-pressure calorimeter, 65.0 mL of 0.800 M H,SO, was added to 65.0 ml. of 0.500 M NaOH.…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be -132.2 kJ :…

A: Given chemical reaction is  4HCl(g) + O2(g) ---> 2H2O(g) + 2 Cl2(g) Standard Enthalpy change of…

Q: 1) The three combustion reactions are: C(s, gr) + O>(g) --> CO,(g) AH =-393.50 kJ H,(g) + ½0,(g)…

A: Solution:    The change in enthalpy of formation is the enthalpy change when the formation of one…

Q: (1) N2(g) + 202(g)→2NO2(g) AH° = 66.4 kJ (2) 2N½0(g)2N2(g) + O2(g) AH° = -164.2 kJ what is the…

A: Given, N2(g)+2O2(g)→2NO2(g) ∆Ho=66.4kJ--------(1)2N2O(g)→2N2(g)+O2(g) ∆Ho=-164.2kJ--------(2)

Q: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) --> HCN (g) +3H2 (g) from the…

A: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) → HCN (g) +3H2 (g) from the…

Q: (a) What is meant by the term standard conditions with referenceto enthalpy changes? (b) What is…

A: a) Standard conditions with respect to the enthalphy of changes would be the enthalphy that is…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH), was added to 50.0 mL of 0.640 M HCI.…

A: The enthalpy change of reaction is calculated with the help of the heat energy absorbed or released…

Q: Image attached

A: Consider the desired equation is as follows: 2NO2g→N2O4g Consider the given reactions as follows:…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680M HCI.…

A:

Q: In walking a kilometer, you use about 100 kJ of energy. This energy comes from the oxidation of…

A: Solution .              Given that                      For 1km  energy required = 100kj 30%…

Q: 25 C,H15(g) + 0,(g) → 8 CO, (g) + 9 H,O(g) AHixn = -5113.3 kJ/mol 2 is the standard enthalpy of…

A: The enthalpy of formation of oxygen, carbon dioxide and water can be find from standard table.   The…

Q: A scientist measures the standard enthalpy change for the following reaction to be -780.8 kJ :…

A: The difference between the change in enthalpy of products and the reactants  is known as change in…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M The…

A:

Q: Using the equations N2 (g) + 3 H2 (g) 2 NHs (g) AH° = -91.8 kJ/mol C(s) + 2 H2 (g) → CH (g) AH° =…

A: The enthalpy of formation of two moles of ammonia is equal to-91.8 KJ/mol The enthalpy of formation…

Q: For the chemical reaction Ca (s) + 2 O2 (g) CaO (s) AH° = -635 kJ/mol. What is the enthalpy for the…

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

Q: 1.) The enthalpy of formation of BaCl2(s) is -858.6 kJ/mol, which of the following st

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Does the standard enthalpy of formation of H2O(g) differ from ΔH° for the reaction 2H2(g) + O2(g) ⟶…

A: The change in enthalpy of the reaction is equal to the difference between the enthalpies of…

Q: A scientist measures the standard enthalpy change for the following reaction to be -200.7 kJ :…

A: The given reaction is as follows: CO(g) + 3H2(g) → CH4(g) + H2O(g) The standard enthalpy change for…

Q: The molar heat of solution (AH,0ln) of sodium hydroxide is -445.1 kJ/mol. In a certain experiment,…

A: Molar heat of solution is defined as the energy released or absorbed per mole of solute being…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M HCI.…

A: Given: Concentration of Ba(OH)2 = 0.340 M Volume of Ba(OH)2 solution = 50.0 mL = 0.050 L…

Q: In a constant-pressure calorimeter, 75.0 mL of 0.880 M H, SO, was added to 75.0 mlL of 0.440 M NaOH.…

A: Given :  Concentration of NaOH solution  = 0.440 M  Volume of NaOH solution = 75 ml  Concentration…

Q: A scientist measures the standard enthalpy change for this reaction to be 2863.2 kJ/mol. 6CO2(g) + 6…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: H2C204(s) + 2 NaOH(aq) → Na2 C204(ag) + 2 H20(1) AHreaction = ??? What is the (experimental)…

A: Given reaction between oxalic acid and sodium hydroxide as follows: H2C2O4 (s) +  2NaOH (aq)→…

Q: he assumption made when chemical reactions are performed which allows u

A: Delta H is the change in the enthalpy, and DeltaE is the change in the energy. In reaction, reactant…

Q: standard enthalpy change for the following reaction to be -208.6 kJ : CO(g) + 3 H2(g)CH4(g) +…

A:

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M HCI.…

A: no of mmoles of water produced is 34 mmoles. The total amount of heat produced is 1.937kJ so the…

Q: Calculate the change of enthalpy for the reaction CH4 (g) + NH3 (g) --> HCN (g) +3H2 (g) from the…

A: Calculate:- CH4 (g) + NH3 (g) --> HCN (g) +3H2 (g)  Given:- Reaction 1: N2 (g) + 3H2 (g) -->…

Q: cion 16 öf 24 In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of…

A: Given molarity of HCl = 0.680 M molarity of Ba(OH)2 = 0.340 M Volume of HCl = 50 ml Volume of…

Q: What is the standard enthalpy change for the reaction?  2NH3(g)N2H4(l) + H2(g) N2H4(l) + O2(g)N2(g)…

A: If A + B→C + D                ΔH =   ΔH2 then C + D → A + B        ΔH = - ΔH1 and for  2 ( A + B → C…

Q: For a particular isomer of C,H8, the combustion reaction produces 5113.3 kJ of heat per mole of…

A: Given  C8H18 (g) + 25/2 O2 (g) -> 8 CO2 (g) + 9H2O (g) Enthalpy of reaction = -5113.3 KJ mol-1 To…

Q: Calculate the enthalpy of the net reaction from the reactions given. 1) H2(g) + Cl½(g) → 2HCI(g) AH,…

A:

Q: The enthalpy change for reaction N2 + 3H2(g) → 2NH3(g) is -92.2kJ. The enthalpy of formation of…

A: Enthalpy of formation is enthalpy change when one mole of substance formed from its constituent…

Q: For the chemical reaction H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

A:

Q: For the chemical reaction Ca (s) + 02 (g)→CAO (s) AH° = -635 kJ/mol. What is the enthalpy for the…

A: Given reaction,      Ca(s) + 1/2 O2(g) → CaO(s)       ∆H0 = - 635 kJ/mol

Q: When 5.12 g of NaOH were dissolved in 51.55 g water in a calorimeter at 24.5°C, the temperature of…

A: Given: The mass of water, (m1) = 51.55 g. The mass of NaOH, (m2) = 5.12 g. The specific heat of…

Q: What is the standard enthalpy change for the reaction? 2NH3(g)→N2H4(1) + H2(g) AH°1 = -543 kJ-mol-1…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)N½O4(g) AH° =…

A: You have given a reaction that follows the Hess Law of enthalpy formation.

Q: If the reaction 2 H2(g) + O2(g) yields 2 H2O(l) is multiplied by 2 and the given enthalpy change is…

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.