For each pair of covalently bonded atoms, choose the one expected to have the higher bond energy. (A) C=C (B) C-C (A,B) (C) C=0 (D) C=0 (C,D)

Q: Draw an expanded structural formula of pent-1-en-3-yne/ CH3-CC-CH=CH2 and then label each carbon.…

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Q: Fluorine can also react with another gas, E(g), according to the following equation. E(g)+2F2(g)…

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Q: What is the reaction energy (AH) for the following reaction (hint: some lewis dot structures have…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Afbau Principle & Hund"s Rule. Explain this ?

A: The filling of electrons in an orbital is done in accordance with certain rules. According to Aufbau…

Q: below

A: E2 mechanism is single step concerted mechanism inwhich only transition state is formed because it…

Q: Q: Arrange the tollowing Compound, in arder of inerausring Energy? HEH H H. H. 2) (3) C4) A) 1> 2…

A: In Compound 1, both bulky groups are in eclipsed position, hence it is highly destabilised or higher…

Q: - 16. Nitrogen gas in the air is relatively nonreac- tive, while fluorine gas ,reacts vigorously…

A: Nitrogen atoms bind very strongly  to form very stable nitrogen molecules, while fluorine molecules…

Q: Calculate the ΔH  for the following reaction using the given bond energies.  (H - C = 414; C - C =…

A: The change in enthalpy of a reaction can be calculated from bond energies of Reactants and Products…

Q: Two sets of lonizations are shown in the tables below. Complete the tables by ordering each set of…

A: Ionization energy is the energy required for removing an electron which is most loosely bounded from…

Q: QUESTION 2 Determine the crystal lattice energy for MgCl2, given the following information: AHOf=…

A: Lattice energy is the energy required to break apart an ionic solid and convert its component atoms…

Q: Q48.Given the following bond energies: Calculate AH° for the r 2Br2(1) + C₂H2(g) → C₂H₂Br4(1) 8+2+28…

A: 48) Given, 2Br2(l) + C2H2(g)  ➝ C2H2Br(l) ∆H° for the reaction = ? Since, the bond energy of…

Q: QUESTION 10 Which of the following energies contributes to the Cv at very high temperatures? O…

A: Option a is correct.

Q: 5. Calculate the formal charge on the Sulphur atom in the Sulphate anion structure shown below: :0:…

A: The charge present on the individual atom of the molecule is known as a formal charge. It can be…

Q: e energy of a p

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Q: Acetylene, C,H, (also known as ethyne), is commonly used as a fuel for welding torches. Label each…

A: C2H2 = acetylene  where C and C are bonded by triple bond and C and H with single bonds .

Q: Complete the equation, using appropiate notations and fromulas: 410Be=?+510B

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Q: for the following: Calculate AH rxn CH4(g)Cl2g) CC4()+ HCIg) [unbalanced AH CH4(g)=-74.87 kJ/mol f…

A: The standard free energy of formation refers to the energy change that occurs when a compound is…

Q: Bond energy per breaking onds охудen, Express your answer to three significant figures and include…

A: Applying formula of bond energy ∆H=BEreactant-BEproducts

Q: O Does not change

A: The oxidation state of non metal in an acid anhydride react with water does not change .

Q: How much heat would need to be removed to cool 50.3 g of water from 25.6°C to -10.7°C?

A: Since in the cooling process, the steps will be  1) cooling of liquid from  25.6°C to 0.0 °C  2)…

Q: Use the bond energies provided to calculate the reaction enthalpy (ΔH°rxn) for the reaction: C2H4(g)…

A: Enthalpy of a reaction is equal to the difference of bond enthalpies of products and reactants.

Q: 3. For Each of the Following Bonds, Determine Whether the Bond Is Ionic or Covalent by aid of…

A: The given bond is C-O. The electronegativity difference in C-O bond is, ∆EN = EN of O - EN of C =…

Q: ography xperiment to longest. (If A is shortest, then B, C and D is longest, enter ABCD ) A C D CH3…

A: Thin-layer chromatography(TLC): This technique is used to separate the mixture of non-volatile…

Q: Calculate the ΔH (in kcal/mol) for the reactions (use table above): a) H2 + O2 → 2 H2O b) CH4 + 2…

A: The enthaply of reaction can be calculated by using the formula:

Q: Q14: The chemical change that describing methane {#C#} production is C (s) + 2H₂ (g) → CH₁ (g) AH°…

A: Hey there! C - H bond energy = 858.1 KJ mole- Calculation is as follow:

Q: What is the K spexpression of Ba(IO3)2?

A: Given Ba(IO3)2 whose Ksp expression is to be determined.

Q: 4) BOND PROCESS. BREAKING IS AN FXOTHERMIC

A: During a chemical reaction there are two types of bond changes occur; Reactants bonds are broken…

Q: When placed in order of increasing the correct order for the species O, O+, and 0-? energy, what is…

A: Ionisation energy of any specie is defined as the energy required to remove an electron from the…

Q: Given that AH; Br(g) = 111.9 kJ-mol- %3D AH; C(g) = 716.7 kJ-mol AH; CBr (g) = 29.4 kJ-mol calculate…

A: Given : ΔHof [CBr4 (g)] = 29.4 KJ/mol ΔHof [Br (g)] = 111.9 KJ/mol And ΔHof [C (g)] = 716.7 KJ/mol…

Q: H H CH2CH3 CH3. CH3CH2 CH3 H H CH3CH2, CHH H. CH3 DCH,CH3 `CH3 CH3 `CH3 CH3CH2 CH3CH2 CH3CH2 CH3…

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Q: Jse average bond energies to compare the stabilities of allyl alcohol, CH2CHCH2OH, and acetone,…

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Q: Given the following data: AHr [CH«(g)] = -75 kJ mol·' C(graphite) → C(g) AH =+712 kJ mol" 1/2H:(g) →…

A: The chemical equation for formation of CH4 can be written as follow                         C(g)   +…

Q: Using the provided table and the equation below, determine the heat of formation (in kJ/mol) for…

A: The amount of heat absorbed or evolved when one mole of compound is formed from its elements is…

Q: What is the relationship between the following compounds? нн and H Br Br Br H Br

A: Plane of symmetry                           Plane of symmetry

Q: Noble gas notation of  K+ is         Select one: a. [Ar]  b. [Ne]3s1  c.  [Ar]4s1

A: The question is based on the concept of electronic configuration. we have to write the correct…

Q: f the bonds C-C, CC, and C≡C, the C-C bond is ________.     strongest/shortest…

A: C-C contains one sigma bond C=C contains one sigma bond and one pi bond  C≡C contains one sigma bond…

Q: Arrange the given bonds in the order of increasing frequency. C=0, C-O, O-H , C=C

A: Different functional groups have different IR frequencies. Frequencies are depend on bond order as…

Q: 1,2,1,2

A: Dear student I have given answer to your question in the image format.

Q: lable below indicates the values of the bond length and bond energy of the diferent ds in HCN BOND…

A: In both C-H and C-N bond , 'C' atom is common. But in C-H bond H is a smaller atom than N atom in…

Q: Of the bonds C-C, C=C, and C=C, the C-C bond is A) strongest/longest B) weakest/shortest c)…

A: We have to predict character of C-C Bond.

Q: Predicting the relative length and energy of chemical bonds Which of the highlighted chemical bonds…

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Q: Using the following S° values, calculate ASn for the formation of HCl from its elements. H2(g) + Cl2…

A: According to the given chemical equation: where, ‘n’ and ‘m’ are the coefficients of the reactants…

Q: Which of the following bonds in the compound below is the strongest? a b C-

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Q: Examine the labeled bonds in the structures below and determine the relative strength and length for…

A: The strength of carbon-hydrogen or nitrogen hydrogen bonds depends on the state of hybridization of…

Q: ____GaF3  + ___Cs-->  ____CsF  + ____Ga     A. (2,2,3,1)   B. (1,3,2,1)   C. (1,3,3,1)   D.…

A: Given reaction is, ____GaF3  + ___Cs-->  ____CsF  + ____Ga

Q: Given the chart of bond energies, calculate the enthalpy change for the reaction below. Show all…

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Q: H2O

A: Dear student I have given answer to your question in the image format.

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.