3. The AH for N2 + O2 →2 NO is 181 kJ. What is the AH for this reaction? NO 1/2 N2 + 1/2 O2

Q: 8. Write the chemical reaction and draw an energy diagram for AHf (C2 H2O2() = +25KJ %3D

A: The given reaction is endothermic as it's enthalpy of formation is positive.

Q: If a reaction has a AG° of –16.0 kJ/mol, will that reaction favor the starting materials or the…

A: We have to predict the direction of reaction.

Q: Calculate ∆S° for the following reactions in J K-1 a. 2 C2H6(g) + 7 O2(g) → 4 CO2(g) + 6 H2O(g) b.…

A: The standard molar entropy of the compounds in reaction (a) can be listed as follows: ∆Soethane =…

Q: 8. For which one of the following reactions is the value of ΔH0rxn equal to ΔH0f for the product?…

A: for delta Horxn to be delta Hof, rule 1: there must be only 1 mol of product being formed rule 2:…

Q: Calculate the standard free-energy changes for the following reactions at 25°C. a. CH4(g) + 2O2(g)…

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

Q: What is AG° for the reaction where Keq=12.5? (R=8 314x10 K/mol-K) O -2.72 kJ O 1 28×1012KJ O -6 26…

A: The standard Gibbs free energy ∆G∘ is measured at standard temperature 298 K. The relation between…

Q: Given the following reaction  2NO(g)  +  O2(g) --> 2NO2(g)         ΔH(rxn) =   -114.2 kJ If ΔHf…

A: Given: 2NO(g)  +  O2(g) --> 2NO2(g)         ΔH(rxn) =   -114.2 kJ If ΔHf NO2 = +33.2 kJ/mol

Q: A(s) + B(s) -> D(g) + heat The reaction shown above is -

A:

Q: 2. For the following hypothetical reactions: 2A + 3B > с+ D AH = -46 KJ E + A AH = 50 KJ A + 0.5D →…

A:

Q: 19. Calculate AH° at 25°C for the following reaction: #2NO2 2NO + 02 a. 57.05 kJ b. –114.1 kJ c.…

A:

Q: following reaction. Ce) + 2HaG) → CH4(G) For which AH° and AS° for the reaction are -74.85 kJ/mol…

A:

Q: What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2NO + O2→2NO2

A: Please find your solution below : The enthalpy of any reaction is calculated through the following…

Q: 3.) HAI(CH CH(CH3)2l2 (DIBAL-H) 1.) NBS 2.) NaCN 4.) H*, H2O Thermodynamic Product Br a) 1.) b.) 1.)…

A: DIBAL-H----->>> Reduction of nitriles to imines then after hydrolysis imine converted into…

Q: Predict Majar produes H2 Lindlar's Catalyst Hz Pt O Na, NHz (D ー33°C

A: In the given above reactions, reduction is taking place. Gain of electrons by any species is called…

Q: For which one of the following reactions is the value of ΔH°rxn EQUAL to ΔH°f for the product? (a)…

A: Enthalpy of formation It is the the enthalpy of formation of one mole of compound in its standard…

Q: The following reactions are possible except CN CN Br2 FeBr3 Br CN CN HNO3 H2SO4 'NO2 CN CN SO3 H,SO4…

A: Those are electrophilic substitution reactions.

Q: 6. Calculate the AG for the following reaction at 25 C: (a) N2(g) + O2(g) 2NO(g) (b) H2O1) H2O(g)…

A:

Q: What is the product of the reaction below. H,O II II IV a) I b) II c) III d) IV e) No reaction will…

A: We have to predict the product of the given reaction.

Q: 1. Which of the following reactions occurs most rapidly at standard conditions? A. 2Fe(s) + O2(g) →…

A: The correct options are as follows: 1. Option D. 2. Option A. 3. Option C.

Q: For which one of the following reactions the value of ΔH°rxn to ΔH°f for the product? N2(g)+O2(g)—>…

A: Answer First option. N2(g) + O2(g) → 2NO(g)

Q: Use the ΔH°f data in the Reference Cards to calculate ΔH°rxn for this reaction: 2 SO2(g) + O2(g) → 2…

A:

Q: A reaction has a standard free-energy change of -10.40 kJ mol-¹ (-2.486 kcal mol-¹). Calculate the…

A: The free energy change of the reaction is = -10.40 kJ/mol The temperature of the reaction is = 25oC…

Q: MISSED THIS? Read Section 19.9 (Pages 878 - 881) ; Watch IWE 19.10 . Part A Consider the following…

A:

Q: In which reaction is carbon reduced?     CO(g) + O2(g) CO2(g)     CO2(g) + H2O(l) H2CO3(aq)…

A: Reduction is a chemical process that can be resulted in an atom by the addition of a hydrogen, gain…

Q: Which reaction represents this energy diagram? (8F0-(8)H7 AH --486.3 kJ 21,0(g) O 486.3kJ + 2H2O(g)…

A:

Q: 1) From the enthalpies of reaction: (5 points) H2) + F2@) → 2HF() AH =-537kJ C(s) +2F2(g)→ CF4(g) AH…

A: Answer : ∆H = 2486300 Joule

Q: What is ΔrH⦵(302 K) - ΔrH⦵(298 K) for the following reaction? F2(g) → 2F(g)

A: Given Temperature T1 = 302K Temperature T2 = 298K F2(g) → 2F(g) To Calculate: ΔrH⦵(302 K) - ΔrH⦵(298…

Q: 3. Assign SN1, SN2, E2 to the reaction below. NaO'Bu CH,Br SN1 SN2 E2 no reaction

A:

Q: A reaction has a standard free-energy change of -13.10 kJ mol-¹(-3.131 kcal mol-¹). Calculate the…

A: Given - Value of standard free-energy change = -13.10 kJ mol-1 (-3.131 kcal mol-1)…

Q: 3. Which reaction would have the most positive AS°? (A) CO(8) + 2H2(g) → CH3OH(1) (B) 2CH3OH(g) +…

A: Interpretation: Which reaction would have the most positive ∆S°, is to be determined. Given…

Q: Solve the heat of reaction of CH4(g) + 2 O2(g)   -------->  CO2(g) + 2 H2O(I)

A: To find: The heat of the given reaction

Q: For which one of the following reactions is the value of ΔH°rxn EQUAL to ΔH°f for the product?…

A: For this , product formed should 1 mol and all the reactants should be in its standard state. Carbon…

Q: 20. What is A,G° (in kJ) at 500.0 K for the following reaction: Zn(s) + H2O(g) - ZnO(s) + H2(g)? 200…

A:

Q: Calculate the E0 for the reaction between S2- and Fe3+ that yields SO42- and Fe2+.

A:

Q: Describe the spontaneity of the following reactions. ΔΗ=91.8 W 1. Nye + 3H ---→ 2NH3 ΔΗ= 29.1 kJ 2.…

A:

Q: Calculate °E for the reaction: CH3OH(l) + 3/2O2(g) CO2(g) + 2H2O(l)

A: By the estimate of the enthalpy of reaction by looking at the individual bonds involved. If we know…

Q: Which is it more favorable to reduce, Cl2 or Br2? Cl2 Br2

A:

Q: Which one of the following reactions will have a positive ∆S? A. CO2 (g) → CO2 (s) B. 2 Hg (l) + O2…

A: We know that Entropy is directly proportional to randomness and we also know that randomness is…

Q: DG° < 0, DH° < 0 and DS° < 0 is it this if the reaction is H2O (l) →→  H2O (s) occurring at -20°C…

A: H2O (l)  →  H2O (s)     Reaction is exothermic so, ∆H° &lt; 0 . Liquid is converted into solid, so…

Q: Calculate the value of delta H. Show your work. activated complex 250 200 PE (kJ) 150 100 products…

A: ∆H = [ PE product - PEreactant ] = 100 - 50 = 50 kJ

Q: a)Determine AGrm° values for the following Combustion reactions at 25°C b) Decide whether this…

A:

Q: Determine the ΔH of the following reactions. 1.) CH4 (g) + 2 O2 (g) à CO2 (g) + 2 H2O (l)…

A: Determine the ΔH of the following reactions.

Q: 1. Using Hess's Law, calculate AH for this reaction: (T: 4) 2H3BO3(aq) →→→ B₂O3(s) + 3H₂O(l) (1)…

A:

Q: What is the coefficient of H (+) when equating the reaction below? Cr2O7 (2-) + S (2-) + H (+) = Cr…

A: The balanced oxidation and reduction half reactions and the overall reaction is: Reduction:  Cr2O72-…

Q: 9. Will this reaction happen or not?* M9CO3 + Fe - yes no ↑

A: By using the table ,  It is clear that, Mg is more reactive than Fe.

Q: Calculate ΔG° in kJ and K at 25°C for the following reactions. (a) Zn(s) + Ag+(aq)  Zn2+(aq) + Ag(s)…

A: "Redox reactions" possess "two half-reactions" in which one occurs at 'anode' named as "oxidation…

Q: 9. For the reaction: 2 CH3OH(g) + H2(g) CaH«(g) + 2 H;O(g) a) Calculate AG° for this reaction using…

A:

Q: 9. For which one of the following reactions is the value of ΔH0rxn equal to ΔH0f for the product?…

A: Given: The reactions, A. H2O2(g) + ½ O2(g) → H2O2(l) B. 2H2(g) + O2(g) → 2H2O(l) C. H2(g) + O2(g) →…

Q: HgO decomposes when exposed to heat: HgO(s) --> 2Hg(l) + O2(g) ΔH = 181.6kJ What mass of O2 can be…

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.