From the enthalpies of reaction: H2 (g)   +   F2(g)    ------- >  2 HF (g)          ∆H = -537 kJ C(s)  +   2 F2 (g)     ------- >   CF4(g)           ∆H = - 680 kJ 2 C (s)  +  2 H2(g)  ------- >   C2H4 (g)       ∆H = + 52.3 kJ Calculate   ∆H for the reaction of ethylene with F2 :    C2H4(g)   +   6 F2 (g)  ------- >   2 CF4(g)  +   4 HF (g)

Q: A chemist measures the enthalpy change AH during the following reaction: C,H1206(s)→3 CH 4(9) + 3…

A: The value of ∆H of a reaction depends on Stoichiometry of the reaction If the equation is reversed…

Q: Given the following thermochemical equations, C2H2(g) + 5/2 O2(g) → 2CO2(g) + H2O(l) ∆H = -1299.5 KJ…

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Q: (Q71) Consider the hydrogenation of ethene to form ethane that occurs according to the following…

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Q: The U.S. requires automobile fuels to contain a renewable component. The fermentation of glucose…

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Q: For the reaction: CS2(g) + 2 H2S(g) CH4(g) + 4S(s) AH = -175 kJ and AS = - 495J/K a. At what…

A: For a reaction to occur spontaneously, delta G should be less than 0

Q: 11. A 0.325 g sample of ethanol (C2H6O) is placed in a bomb calorimeter (heat capacity of 5.51…

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Q: 25°C, the enthalphy of formation of gaseous nitric acid is -134 KiloJoules per mole. Calculate the…

A: For the given reaction, Enthalpy of formation of nitric acid = -134 KJ/mol Temperature = 25°C = 298K…

Q: combustion of octane (in gasoline) occurs according to the reaction 2 CgH₁8 + 25 0₂ 16 CO₂ +18 H₂O.…

A: Given-> ∆Hf(octane) = -268.8 KJ/mole ∆Hf(CO2) = -394KJ/mole ∆Hf(H2O) = -286 KJ/mole

Q: Above what temperature does the following reaction become nonspontaneous? N204(9) + 4 H2(g) → N2(9)…

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Q: A 1.72 g sample of the saccharide, C6H1206, shown below is combusted in a constant volume…

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

Q: he Keq of a reaction is 4 x 10⁻⁷. At equilibrium, the... * reactants are favored…

A: The value of the equilibrium tells us whether the reactants are favored or the products are…

Q: A chemist measures the enthalpy change AH during the following reaction: COC1₂(g) + 4NH3(g) →CO…

A: Given reaction is :  COCl2 (g) + 4NH3 (g) -----------> Co(NH3)2 (s) + 2NH4Cl (s)  Change in…

Q: → 2 NO(g) ► 2 N2(g) + O2(g) AH = +180.7 kJ NO(g) + O,(g) → 2 NO,(g) AH = -113.1 kJ 2 N;O(g) → 2…

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Q: Calculate the enthalpy change for the reaction  P4O6 (s)+ 2O2(g)= P₄O₁₀(s) given the following…

A: Enthalpy change refers to the amount of heat evolved or absorbed in a reaction which is at constant…

Q: Calculate ΔH for the process: Hg2Cl2 (s) → 2Hg(ℓ) + Cl2(g) from the following information: Hg(ℓ)…

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Q: Use Hess's Law to calculate the heat of formation of CO(g) given the following information: C(s) +…

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Q: Given: Hydrogen peroxide decomposes according to the following thermochemical reaction:…

A: According to the reaction, delta H for decomposition of H2O2 = -98.2 KJ/mol

Q: Consider the decomposition of liquid benzene, C6H6(l), togaseous acetylene, C2H2(g):C6H6(l)…

A: a) C6H6(l) -----> 3 C2H2(g) ΔH = +630 kJ  the enthalpy change for the reverse reaction  3 C2H2(g)…

Q: Q2.) For a particular reaction, ΔH = -32 kJ and ΔS = -90 J/K . Assume that ΔH and ΔS do not vary…

A: Given : ΔH = -32 kJ  ΔS = -90 J/K 1) To calculate Temperature at which  ΔG=0  ΔG = ΔH  - TΔS ΔG=0…

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

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Q: Above what temperature does the following reaction become nonspontaneous?         2 H2S(g) + 3…

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Q: (6: 2 pts): What is the second law of thermodynamics? How are ice freezing and water boiling…

A: The second law of themodynamic: The entropy of the surroundings increases by an amount equal to the…

Q: What is the change in internal energy (in kJ/mol) of the given reaction if 2 moles of sulfur dioxide…

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Q: Isooctane (C8H18; density = 0.69 g/mL) is one of the many hydrocarbons that make up gasoline. Use…

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Q: (a) Consider the following chemical reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g) ΔH = ? Use…

A: Given: The thermochemical data, 4Fes + 3O2g → 2Fe2O3s                      ∆H° = -1652 kJ/mol…

Q: The thermochemical reaction equation for photosynthesis is as follow: 6H2O (l) + 6CO2 (g) → C6H12O6…

A: Solution:     The endothermic reaction shows the energy absorbed during the chemical reaction while…

Q: The standard enthalpy change for the following reaction is-135 kJ at 298 K. C(s,graphite) + 2…

A: Given : standard enthalpy for reaction  C(s) + 2 Cl2 (g) = CCl4 (l) is = - 135 KJ To find : standard…

Q: Calculate ΔHrxnΔHrxn for the following reaction:   CH4(g)+4Cl2(g)→CCl4(g)+4HCl(g) given these…

A: In these types of questions, we have to try to rearrange the given equations and add them in such a…

Q: 4. Find the standard molar enthalpy for the reaction C(s) + % O2(g) – CO(g) C(s) + 02(g) – cOo2(g)…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: CH3OH(g) ---> CO(g) + 2H2(g) DH = +90.7 kJ Calculate the amount of heat tranferred when 1.54 kg of…

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Q: Use the thermochemical data that follow to calculate the value of ΔH° for the reaction: 4 B  2 A + C…

A: Thermochemistry can be defined as the branch of chemistry that deals with heat energy associated…

Q: 11.Describe the conditions at which the following thermochemical equations are  spontaneous. If you…

A: Chemical Reaction are almost invariably accompanied by energy changes which ordinarily, appear in…

Q: Calculate ΔH for the reactionC(s) + H2O(g)------> CO(g) + H2(g)given the following thermochemical…

A: From the given equations, it is clear equation (4) can be obtained by adding equation (1), reverse…

Q: What is the change in internal energy (in kJ/mol) of the given reaction if 2 moles of sulfur dioxide…

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Q: N2(g) + O2(g) + Cl2(g) ---------> 2 NOCl(g)        ΔH° = 103  kJ What is the standard enthalpy…

A: The answer to the following question is- Given  The reaction : Equation 1) N2(g) + O2(g) + Cl2(g)…

Q: When 1.14 g of octane (molar mass = 114 g/mol) reacts with excess oxygen in a constant volume…

A: Given:  Change in temperature =10oC Total heat capacity = 6.97 kJ/mol qcal = - qrxn

Q: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: for the given endothermic reaction, N2(g) + 2O2(g) →2NO2(g)

Q: When 0.8451 g of naphthalene (C10H8) combusts in a bomb calorimeter, the temperature rises by…

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Q: How much energy in kJ is released when 124.49 g of nickel react with an excess of phosphorus? 5 Ni…

A: Change in enthalpy ,∆H, is a extensive property of the system,.i.e, it depends on the mass of the…

Q: Given the following thermochemical equations, C2 (g) +5/2O2 (g) → 2CO2 (g) +H2O (l) ΔH = −1299.5kJ…

A: Given: C2H2(g)+52O2(g)→2CO2(g)+H2O(l)     ∆H=-1299.5 kJ---eqn(1)C(s)+O2(g)→CO2(g)…

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the followingreaction:…

A: The given reaction is deduced by multiplying reversing the first reaction and further multiplying by…

Q: For the reaction given below, AH--1516 kJ at 25 C and AS--432.8 J/K at 25 C, This reaction is…

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Q: N2(g) + O2(g) 2 NO(g)   H = +180.7 kJ 2 H2O(l) 2 H2(g) + O2(g)   H = +571.7 kJ 4 NH3(g) + 5 O2(g)…

A: given,  reaction 1: N2(g) + O2(g)⇔ 2 NO(g)       H= +180.7 kJ reaction 2: 2 H2O(l) ⇔ 2 H2(g) + O2(g)…

Q: Consider the decomposition of liquid benzene, C6H61l2, togaseous acetylene, C2H21g2:C6H61l2 ¡ 3…

A: Decomposition reactions are one in which the reactants get splits into one or more than one…

Q: The heat of combustion of isopropyl alcohol is -2006 kJ/mol. Given the following information,…

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Q: (Q77) The standard Gibbs free energy (AG°rxn) for the formation of sulfur trioxide from sulfur…

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Q: Consider the decomposition of liquid benzene, C6H6(l), to gaseous acetylene, C2H2(g): ⅓C6H6(l) --->…

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Q: In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon…

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Q: TRUE OR FALSE  1. It is more convenient to use change in enthalpy, ΔH, as a criterion of…

A: 1. enthalpy and entropy can not be used alone as a spontaneity criterion. Thus, statement one is…

Q: Determine the AH for the overall reaction based on the three-step thermochemical processes below:…

A: The steps of the reaction given are,