Tas

Q: 15) Consider the following reaction at 25°C. If the pressure of H2 is 1.00 atm, the pressure of N2…

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Q: The combustion of hydrogen in the presence of excess oxygen yields water: 2H2 (g) + O2(g) – 2H20 (I)…

A: The entropy change of reaction is given by the difference between the sum of the entropies of all…

Q: The enthalpy of vaporization of ethanol is 38.7 kj/mol at its boiling point (78C). Determine ΔS sys,…

A: Provided;Enthalpy of ethanol vaporization is  38.7 kJ/molThe boiling point of ethanol is 78 degrees…

Q: Predict the sign of ΔSsys, ΔHsys, ΔSsurr, and the temperature conditions for spontaneity for the…

A: Entropy is defined as degree of randomness or disorderliness present in a molecule.If a molecule is…

Q: Consider a chemical reaction that has a AH°f = 30.0 kJ/mol and a AS° = 100.0 J//mol•K). At what…

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Q: Define spontaneity of a reaction in terms of ∆G. Determine if a process is spontaneous based on…

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Q: Pure crystalline silicon, Si (s), can be obtained by reacting silicon dioxide (in the crystalline…

A: The ∆H0 and ∆S0 of the reaction can be calculated as follows:

Q: The melting point of benzene is 5.5 °C. Predict the signs of ΔH, ΔS, and ΔG (in terms of the system…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: H2S (g) + 3/2​O2 (g) ----> H2O (g) + SO2 (g) ΔS° =______J/K

A: The given chemical equation is represented as follows:

Q: Consider this reaction occurring at 298 K:BaCO3(s)<----->BaO(s) + CO2( g)a. Show that the…

A: a. ΔG°rxn is +ve. therefore, the reaction is not spontaneous.

Q: If Keq for the reaction below at 225°C is 1.87 x 1010, calculate ΔS°rxn. B2 (g)  +  2 A (g)  →  2…

A: The randomness of the system is known as entropy of the system.

Q: Calculate ∆ Grxn° values for the following reactions at 298 K using the tabulated ∆ Gf° values. a)…

A: The chemical reactions given are  a) 2 Mg (s) + O2 (g) → 2MgO(s) −1138.6 kJ/mol b) 2 CH3OH (g) + 3…

Q: The normal boiling point of benzene is 80.1 ℃. If we place a 1 mol liquid benzene in an oven with a…

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Q: . Find AH, AS, and AG. Is this reaction exothermic and is it spontaneous? NO (g) + ½ 02 (g) -> NO2…

A: ∆H° and ∆S° can be calculated from the given standard values of each products and reactants. And…

Q: Calculate the standard free energy change (kJ/mol) for the reaction shown at a temperature of 298.15…

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Q: These reactions are important in catalytic converters in automobiles. Calculate ΔG° for each at 298…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Find the the ∆H°rxn if ∆G°rxn is 420 kJ/mol and ∆S°rxn is -143 J/mol*k *refer to the photo attaced.

A: Since there are multiple questions, we are authorized to answer only the first one, that is, no. 1.…

Q: Calculate the free energy change for the following reaction at 25°C. Is the reaction spontaneous at…

A: Given: ΔHrxn = −1269.8 kJ ΔSrxn=−364.6 J/K T = 25°C = 298 K

Q: Are the values of ΔHvap and ΔSvap for boiling water going to be positive or negative? Explain if…

A: Given statement is :  Are the values of ΔHvap and ΔSvap for boiling water going to be positive or…

Q: Consider the following reaction: 2NO2(g) ⟶ N2O4(g) Calculate ΔG at 298 K if the partial…

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Q: Calculate the ΔS°rxn of the following reaction at 223°C and standard pressure. =_____J/mol•K

A: The reaction given is,

Q: Calculate AG at 298 K for the following reactions. Ca(s) + CO₂(g) + 1/2O₂(g) → CaCO3(s), [Select]…

A: The objective of the question is to calculate the standard Gibbs free energy change for each given…

Q: A sample containing 3.05 moles of He (1 bar, 359 K ) is mixed with 2.50 mol of Ne (1 bar, 359 K )…

A: Given that, at 1 bar pressure and 359 K temperature, a sample containing 3.05 moles of He is mixed…

Q: The ΔG°rxn for this reaction is -107.8 kJ/mol. Given the values for ΔGf°; what is the ΔGf° for…

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Q: Consider the sublimation of iodine at 25.0 °C : I2(s)----->I2( g)a. Find ΔG°rxn at 25.0 °C.b.…

A: Gibbs energy is the free energy present in the system that is used to do some useful work. it is…

Q: Calculate ΔS°rxn for the following reaction. The S° for each species is shown below the reaction.…

A: An increase in entropy results from an increase in disorder. Entropy is an extensive property ( a…

Q: 2) Given the following information, determine at what temperature the following reaction becomes…

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Q: 10. Iron(III) oxide can be reduced by carbon monoxide. Fe₂O3(s) + 3CO(g) 2Fe(s) + 3CO₂(g)Use the…

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Q: Melting of the ice is a result of  a   a positive ΔS and a negative ΔH b   a positive ΔS and a…

A: When the water is reaches a temperature nearly 0℃ and below it it get freezes and Ice is formed.

Q: What is the ΔS° for the reaction? Given are the S°, in J K-1 mol-1, of each substance in…

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Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH₃(g) → 3 Ni(s) + N₂(g) + 3 H₂O(g) Given the…

A: We will use the table values to solve this problem:

Q: For which of the following reactions is ΔS less than zero? a) MgCO3 (s) --> MgO (s) + CO2 (g) b)…

A: The change in the entropy is less than zero if the number of products is less than the number of…

Q: The value of ΔS° for the decomposition of POCl3 into its constituent elements, 5 2POCl3 (g) → P2…

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Q: For which of the following reactions is ΔS less than zero? a) MgCO3 (s) --> MgO (s) + CO2 (g) b)…

A: Entropy change (S) is defined as the difference between the number of moles of products which are…

Q: The normal boiling point of methanol is   and the molar enthalpy of vaporization if 71.8 kJ/mol. The…

A: Boiling point is defined as the amount of heat required to vaporize a liquid. this depends on…

Q: alculate ΔGmix for the following mixtures at 298 K and 1.00 atm,, assuming these gases behave as…

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: For which of the following reactions is ΔS° at 25°C closest to zero? 1. 2NO(g) + O2(g) → 2NO2(g) 2.…

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