Which one of the following statements from Chapter 8 and 18 is FALSE?

Q: For the following chemical reaction determine the heat of reaction (Bond enthalpy). Is this reaction…

A: First Calculate the bond breaking energy ( in Reactant side ) :   ∆H(Reactant) = [ 4∆H(C-H) +…

Q: Use the References to access important values if needed for this question. Use average bond…

A: Enthalpy change

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Consider the givenreactions: Reaction 1: H2(g)+ Cl2(g)⟶2HCl(g)    ΔH=−184.6 kJ  Reaction 2:…

Q: 2 X+ Y2Z3 →2 Y+ X2Z3, AH = -325 kJ/mol Given the equation above how many kilojoules of heat are…

A: Given that: 2X + Y2Z3    ----->  2Y + X2Z3     ∆H = -325 kJ/mol

Q: Bond Enthalpies ΔΗΞ Σ ΔΗ(bonds broken) - ΣΔΗ(bonds formed) Draw the Lewis structures for each…

A: The bond energies:  C-H = 413 KJ/mol  C-Cl =328 KJ/mol  H-Cl =431 KJ/mol  Cl -Cl =242 KJ/mol  First…

Q: How much energy in kilojoules is required to convert 511 mL of water at its boiling point from…

A: Boiling point of water is 100°C. Boiling point is defined as temperature at which liquid convert…

Q: This sketch of a neutral molecule is shaded red or blue wherever the electrostatic potential at the…

A: The electrostatic potential at any point on the surface can be defined as the amount of work done in…

Q: Nitrogen gas mixes with hydrogen gas to produce ammonia gas (NH3). How much energy is required or…

A: Energy produced by this reaction is equal to -91.8 KJ/mol N2 + 3H2 -------> 2NH3        DEL Ho=…

Q: Considen these reactions H₂(g) + Cl₂ (g) -> 2HCl(g) DH = -184.6kJ 2014- ²₂ (g) + 2 F₂ (g) DH =…

A:

Q: Part 2 Place each of the four chemical species on the appropriate points on the diagram by clicking…

A: The given species have been identified on the appropriate points by predicting their energy using…

Q: Using the AH-49.5 kJ/mmol, calculate the enthalpy change if you neutralized six moles of HCI with an…

A: Given  ΔH = - 49.5 kJ/mmol = - 49.5 x 10 3 kJ/mol Moles of NaOH =6 Moles of HCl = 6

Q: Question 2: You have two gasses at room temperature. The mass of each of the two gasses is the same.…

A: A question based on chemical thermodynamics. Two ideal gases that are put into the same container,…

Q: Using the equations 2 2 CsHo (l) + 15 O, (g) → 12 CO, (g) + 6 H₂O (g)AH° = -6271 kJ/mol 2 H₂(g) +…

A: The enthalpy for the reaction 6 C (s) + 3 H₂ (g) → C₆H₆ (l) is determined by considering all other…

Q: Using the equations 2 CHe (1) + 15 O2 (g) → 12 CO2 (g) + 6 H20 (g)AH° = -6271 kJ/mol 2 H2 (g) + O2…

A: The given reactions are,

Q: Now consider Oxygen. Can it become stable by 2 oxygen atoms reacting together? Draw the resulting…

A: Given statement is :  Now consider Oxygen. Can it become stable by 2 oxygen atoms reacting together?…

Q: a) Which of the following ionic compounds has the largest lattice energy? (Hint: You might want to…

A: Lattice energy : It is the amount of energy released when one mole of a crystalline ionic compound…

Q: Use bond enthalpies in the table below to estimate AH for each of the following reactions. Part B…

A:

Q: Why is it minus HNO3 for the delta H and not plus? Wouldn't we add them?

A: As we know that the enthalpy change ( ∆H° ) of a reaction is the difference of the standard…

Q: Combustion reactions involve reacting a substance with oxygen. when compounds containing carbon and…

A: The enthalpy of combustion of a substance is defined as the heat energy given out when one mole of a…

Q: 2. H-C=C-H(g) + 2H2(g) →H3C-CH3(g)

A: Bond energies :  C-H = 413 KJ/mol  C triple bond C = 839 KJ/mol  H-H = 436 kJ/mol  C-C = 348 KJ/mol…

Q: Part A In chemical reactions, heat is converted into chemical energy (the potential energy stored in…

A:

Q: H H¬C-H + 2 O=O H Express your answer in kilojoules to three significant figures. ΔΗ = ΑΣΦ 0=C=O + 2…

A: Enthalpy of reaction can be calculated using bond energies. ∆H°rxn = bond energy of bond broken -…

Q: What type of chemical bond is the weakest?

A: The type of chemical bond that is the weakest is to be identified.

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ Reaction 2:…

A:

Q: بود هماهنگی 6. OH 7. CH₂ Type of Reaction: H Type of Reaction: HO H₂N + [H]- 8. For the following…

A: The question is based on organic reactions. We need to identify the product and explain its…

Q: H2N' 1. CHзI (excess) 2. NaOH, heat Drawing Q

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: 19. Given the following information: Li(s) → Li(g) HI(g) →→→ H(g) + I(g) ->> Li(g) → Li*(g) + e¯…

A:

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A:

Q: Which of the following is not shown on an energy reaction coordinate diagram? O The energy released…

A:

Q: Given the following data 2 CIF (g) + O₂(g) → Cl₂ O(g) + F₂O(g) 2 CIF3 (9) +202(g) → Cl₂ O(g) +…

A: According to Hess law of heat summation , enthalpy change of net reaction remains same whether it…

Q: 1. Explain the benefit of letting the solutions of HCl(aq) and NaOH(aq) sit overnight. 2. When using…

A: Neutralization reaction can be defined as a chemical reaction in which an acid and base…

Q: ORT SHEET Heat of Neutralization EXPERIMENT elemsboomfchg lom 12 A. Heat Capacity of Calorimeter 1.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Which of the following is TRUE if AEsys =- 115 J? Both the system and the surroundings are losing…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Use data from table (Figure 1), the figure (Figure 2) and the figure (Figure 3) to calculate the…

A: Answer: According to Hess's law relation between enthalpy of formation and lattice energy is shown…

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.