Consider the potential energy diagram. Which of the following is true for the reverse reaction? catalysed ∆Hrev= +50kJ Earev=+150kJ catalysed ∆Hrev= -50kJ Ea=+50kJ uncatalysed ∆Hrev= +50kJ Ea=+150kJ uncatalysed ∆H= -50kJ Ea=+150kJ

Q: Zn(s) + 2HCI(aq) ZNC12(aq) + H2(g) + 153kJ For this reaction at 25°C, · Change in enthalpy: [ Select…

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Q: Consider the reaction below: CaCO3(s) + 2H3O+ (aq) H=15.3kJ Since AH is a positive v a Therefore,…

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Q: (Q64) If a reversible reaction is spontaneous in one direction: O It will occur at a more rapid rate…

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Q: The combustion of ethane is shown below. 1 C2H6 (g) + 7/2 O2 (g) → 2 CO2 (9) + 3 H20 (g) AHP =…

A: correct option   C. C

Q: Zn(s) + 2HC1(aq) ZnCl2 (aq) + H2 (g) + 153kJ - For this reaction at 25°C, Change in enthalpy: […

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Q: According to the potential energy diagram below, the ΔH for the reaction is:  options: a - 100 kJ…

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Q: 1. The action of catalyst regarding the rate of reaction involves: A. Arranges the orientation of…

A: The answers are below

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Q: What

A: We will use relation between Gibbs energy and reaction quotient

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A: The 3 reactions given are, 1) CH4 + 2 O2 -----> CO2 + 2 H2O                              ΔH =…

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Q: When 1.00g of magnesium metal is burned to give magnesium oxide, 5.92 kj of heat are set free.…

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Q: Reaction A: glucose + fructose ⇒ sucrose Reaction B: ATP → ADP + Pi AG" = +27.0 kJ/mol AG= -30.5…

A: A reaction is spontaneous when the Gibbs free energy, ∆Go' is negative.  A reaction is…

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A: Equilibrium constant Kp for the reaction is determined.

Q: For a reaction, ∆Ho = 363.0 kJ mol-1 and ∆So = 311.2 J K-1mol-1. Calculate the value of ∆Go  kJ…

A: Given,   ∆Ho = 363.0 kJ mol-1 .                           ∆So = 311.2 J K-1mol-1.…

Q: Calculate AH for the following reaction: 5C+6 H, → C,H,2 Given the following information: | C,H2 + 8…

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Q: Keq

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Q: At what temperature will the reaction with ASrxn = -92.6 J/K and AHrxn =-61.4 kJ pivot %3D (switch)…

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Q: The combustion of glucose is given by the reaction C6H12O6 (s) + 6O2 →6H2O(l)+6CO2 (g) The heats…

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Q: For which set of conditions is the reaction always nonspontaneous? ΔH = + and ΔS = + ΔH = - and…

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Q: Hydrogen peroxide decomposes by the following reaction.  The reaction is rapid with the addition of…

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Q: Calculate ∆S°for the following reaction: SnCl4(l)→SnCl(g) A :-625J/K B: 107J/K C: 625 J/K D:…

A: Concept based on the standard entropy of the chemical reactions.

Q: Calculate ASgurr for the following reactions at 28°C and 1 atm. a. C5 H12 (g) +802(g) → 5C0, (9) +…

A: Temperature = 28oC   { but 0oC = 273.15 K }   Temperature = 28+ 273.15 K = 301.15 K   a) chemical…

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Q: Which of the following reactions would be spontaneous? O AH = -50 KJ, T = 250K, AS = -200 J %3D %3D…

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Q: A reaction has the following thermochemical values at 283.15 K: ΔH = -183.3 kJ mol-1 ΔS = -160.6 J…

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Q: CO2(g) + H2(g) → CO(g) + H20(g) AH = 41.2 kJ /mol - rxn When 15g of Carbon Dioxide react with…

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Q: 58. Estimate the temperature at which for the following reaction becomes thermodynamically…

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Q: Estimate the free energy change (ΔGrxn) for the following reaction at 298 K, if each gaseous…

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Q: According to Le Châtelier's principle and the dependence of free energy on reactant and product…

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Q: Determine the standard free energy change at 25 °C for the reaction 2 H2(g) + O2(g) ---> 2 H2O(g)…

A: The standard thermodynamic data for the given reactants and products at given temperature is,

Q: Estimate the free energy change (ΔGrxn) for the following reaction at 298 K, if each gaseous…

A: For the above reaction, the expression of equilibrium constant will be  Kp = (PCO2 )2 / (PO2)3…

Q: Given the following data: AH°¡[FeO(s)l = -270 kJ/mol; AH°† [Fe2O3(s)l = -820 kJ/mol. Select the…

A: The balanced reaction taking place is given as, Given : ΔHof [FeO(s) ] = -270 KJ/mol And ΔHof…

Q: 11. The reaction below is conditionally spontaneous. Using the data below, which is the critical…

A: We have the change in Gibbs free energy formula, ∆G = ∆H - T∆S If the reaction is spontaneous, the…

Q: For a certain equilibrium reaction, the following data are given AH = -57.2 kJ/mol K = 1.2 x 104…

A: ∆H = -57.2 KJ/mol.  K = 1.2 × 104  The statements supported by the given data  = ?

Q: A reaction has A Hon -65.1 kJ/mol %3D rxn A Sexn = - 47.8 J/mol K Inder what range of temperatures…

A: Given: ∆Hrxn0=-65.1KJmol=-65100 Jmol∆Srxn0=-47.8.Jmol K

Q: What is ∆Gº for the reaction where Keq=22.5? (R=8.314x10-3kJ/mol-K)   -7.71 kJ   -3.35 kJ   -2390…

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Q: Calculate the enthalpy change for the reactionP4O6(s) + 2 O2(g) -----> P4O10(s)given the…

A: The given reactions are, From the above equations, it is clear equation (3) can be obtained by…

Q: 3. Use the AH° and AS° values below to determine the range of temperatures (in kelvin, K) for which…

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Q: Product Reactant Product Reactant Time Time Reaction 1 Reaction 2 raphs above represent the changes…

A: As per the graph , Reaction 1 is product favoured  and reaction 2 is reactant favoured .

Q: Given the following at 25 °C and 1.00 atm: 2Fe(s) + 02(g) → 2FEO(s) 4Fe(s) + 302(g) → 2Fe2O3(s) AH°…

A: Given data :  Required equation: Fe2o3(s) + FeO (s) -------> Fe3o4(s)  Calculate ∆H° = ?

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

A: Given : CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)                ∆H = -890.0 kJ  To calculate :-  amount of…

Q: Direction: identify whether the process is spontaneous or nonspontaneous. Write your answer on a…

A: A spontaneous process is defined as the process itself happens without any external agent or force.…