47.ΔS is positive for which of the following reaction ________. A) CaO (s) + CO2 (g)  →  CaCO3 (s) B) N2(g) +  3H2 (g)  →  2NH3 (g) C) 2SO3(g) →  2SO2 (g)  +  O2 (g) D) Ag+(aq) +  Cl- (aq)  →  AgCl (s) E) H2O (l) → H2O (s) Group of answer choices

Q: A student dissolves 12.5g of lithium chloride LiCl in 250.g of water in a well-insulated open cup.…

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Q: In the reaction below, ΔH°f is zero for ________.                 Ni (s)  +  2CO (g)  +  2PF3 (g)…

A: Ni (s) + 2CO (g) + 2PF3 (g)  → Ni(CO)2(PF3)2 (l) We have to find the substance for which ΔH°f is…

Q: nsider the reaction: Ca(s) + 2 H₂O(l) → Ca(OH)2 (aq) + H₂ -285.83 -1002.82 C 69.95 -74.5 130 ƒH°…

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Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: Spontaneity is predicted by change is gibbs energy, if change in gibbs energy is negative then the…

Q: 6. Find AH for the following reaction: Fe2O3 (s) + 3 CO (g) → 2 Fe (s) + 3 CO₂ (g) Use these…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected…

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Q: A student dissolves 11.8 g of potassium chloride (KCI) in 200. g of water in a well-insulated open…

A: A reaction will be exothermic if the energy of the system decreases from its value, that is, heat…

Q: Calculate the ΔHºrxn of the following processes at 25 degrees celsius and determine whether each…

A: ΔHºrxn is given by the difference of ΔHºproducts  and ΔHºreactants.If ΔHºrxn is negative, then it is…

Q: Hot packs used by skiers use the crystallization of sodium acetate from a concentrated solution.…

A: Enthalpy change is defined as the amount of heat released or absorbed in a chemical reaction. It is…

Q: Use Hess's law to calculate ΔG°rxn using the following information.               NO(g) + O(g) →…

A: The first thing to do is to change the bottom three reactions to make it look like the top reaction.…

Q: A 6.620g sample of C12H24(l) was burned in a bomb caloriemter whose heat capacity had been…

A: Given: Mass of C12H24 is 6.620 g Molar mass is 168.319 g/mol Mass of water is 1250.0 g Initial…

Q: Use Hess's law to calculate ΔGorxn using the following information. CO(g) -----> C(s) + 1/2 O2(g)…

A: Please find your solution below : Hess's law of constant heat summation states that heat absorbed or…

Q: Change During an endothermic chemical reaction, a gas is consumed and a liquid produced. A solid…

A: Answer:The spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy…

Q: Using the following reactions: 2 H 2 (g) + O 2 (g) --> 2 H 2O (g) ∆H = –484 kJ x 2…

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Q: A student dissolves 11.3 g of ammonium nitrate (NH,NO,) in 250. g of water in a well-insulated open…

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

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Q: Which one of the following reactions cannot proceed spontaneously as written at any temperature?…

A: For a reaction having ∆H positive and ∆S negative can not be spontaneous.

Q: .. This question is given in the photo 2..The Haber process is used to produce ammonia for…

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Q: For the reaction 2CH4 (g) + 3 Cl2 (g) → 2 CHCl3 (l) + 3 H2 (g), ΔH° = -118.6 kJ. ΔH°f = -134.1…

A: a balance chemical equation,   2CH4(g) + 3Cl2(g) -----> 2CHCl3(l) + 3H2(g) ∆Ho = -118.6 kJ  &…

Q: Which of the following processes are endothermic? O None of the above are endothermic. O2 Br(g)…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: 2 Ag20(s) → 4 Ag(s) + O2(g) Thermodynamic data are given below. 2 Ag20(s) → 4 Ag(s) + 02(g)…

A: NO, decomposition of silver (I) Oxide is not favored at 25 deg C.

Q: Sulfur dioxide reacts with oxygen to produce sulfur trioxide. Thermodynamic Data Substance ΔfH∘…

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Q: Change An exothermic chemical reaction between a solid and a liquid results in gaseous products. A…

A: Answer: Spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy…

Q: Calculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. N2…

A: To get the required reaction4NH3→2N2+6H2    ∆H=2×91.8=183.6KJ2N2+2O2→4NO…

Q: ΔGfo

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Q: A student dissolves 14.6 g of potassium chloride (KCl)in 300. g of water in a well-insulated open…

A: Given that,  The mass of the KCl is ms = 14.6 g, The mass of the water is mw = 300. g. The initial…

Q: Using the following reactions: NO (g) + 0.5 O 2 (g) --> NO 2 (g)             ∆H = 50 kJ x    N 2O 4…

A: Determine  the enthalpy change of the given reaction.

Q: Calculate the standard enthalpy of formation of solid Mg(OH)2 given the data shown below. 2Mg(s) +…

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Q: Silver (Ag, 107.9 g/mol) oxidizes to form Ag2O (231.7 g/mol).  The molar heat of formation (ΔHfo) of…

A: Given (ΔHf ) of silver oxide = –31.05 kJ/mol. Molar mass of Ag = 107.9 g/mol Molar mass of Ag2O =…

Q: Consider the following generic reaction: A+2B→C+3D with ΔH = 111 kJ . Determine the value of ΔH for…

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Q: The symbol ΔGf (MgSO4, s) refers to which one of the following reactions? Exlain your answer.…

A: Answer:When formation of one mole compound takes place from its constituent elements when they are…

Q: Determine the value for ΔSsurr for the following reaction at 40.0°C. 2 CO(g)  +  O2(g)  →→  2…

A: Given reaction: 2 CO(g)  +  O2(g)  →  2 CO2(g)     ΔHorxn = –566.0 kJ  We have to find ΔSsurr.…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

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Q: Use the thermodynamic data below to answer the following questions regarding this chemical reaction:…

A: Thermodynamics is branch of science that involves the study of heat, work, temperature and energy.…

Q: Determine the enthalpy of reaction for HCI(g) + NaNO2(s) -> HNO2 (l) + NaCl(s) 2NaCl(s) + H2O(l) →…

A: Given data 2NaCl(s) + H2O(l) → 2HCI(g) + Na2O(s); ∆H ° =-507.1 kJ/mol NO(g) + NO2(g) + Na2O(s)→…

Q: CaCl2 (MM = 110.98 g/mol) is used as road salt in the winter to minimize the accumulation of ice on…

A: On adding dissolving CaCl2, the temperature will change from initial value. Heat absorbed by water…

Q: A student dissolves 14.6 g of potassium chloride (KCl)in 300. g of water in a well-insulated open…

A: Given that,  The mass of the KCl is ms = 14.6 g, The mass of the water is mw = 300. g. The initial…

Q: N2 (g) + 3H2 (g) → 2NH3 (g)   b Ag+ (aq) + Cl- (aq) → AgCl (s)   c CaO (s) + CO2 (g) → CaCO3 (s)…

A: In the above reaction  standard molar entropy of Gas is highert thanLiquids

Q: Given the following equation, H2O(g) + CO(g) → H2(g) + CO2(g)             ΔG°rxn = -28.6 kJ…

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Q: A student dissolves 13.4 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup.…

A: Answer:During a chemical reaction, when heat evolved then it is called as exothemic reaction and…

Q: Calculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1.…

A: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) 1. N2 (g) + O2 (g) → 2NO (g) , ∆H = -180.5 kJ 2. N2 (g) +…

Q: Given ΔG∘rxn=103.7 kj/mol for N2O(g) and ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn for the…

A: Given : ΔG∘rxn=103.7 kj/mol for N2O(g)  ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn .

Q: Choose the reaction that illustrates ΔH°f for Mg(NO2)2. Choose the reaction that illustrates ΔH°f…

A: Standard Enthalpy of formation, ΔH°f  :- The enthalpy change involved when one mole of a substance…

Q: Consider the reaction A → B with ΔS° = -80.980 J/(K·molrxn) and the reaction B → C with ΔS° =…

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Q: 8. Nitric oxide reacts with chlorine to form NOCI. The data refer to 298 K. 2NO(g) + Cl₂(g) →…

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Q: Using Hess’s law, calculate ∆H° for the first reaction below given the data for the other two…

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Q: Find the ΔH for this reaction :   3H2(g) +O3(g) --> 3H2O(g) Given the two following pieces of…

A: Given- 3H2(g) + O3(g) --> 3H2O(g)

Q: 1.Consider the complete combustion of methane gas, CH4(g): Which of the following BEST describes the…

A: Entropy is defined as measure of randomness or disorder of system.