The Gibbs free energy decreases when: I. A molecule breaks into two or more smaller molecules. II. A gaseous reaction occurs resulting in an increase in the number of moles of gas. III. A solid changes to a liquid state. IV. A liquid changes to a gaseous state. (a) I only. (b) Only II. (c) Only III. (d) Only IV. (e) All: I, II, III, and IV [justify the answer you consider correct]

Q: Given the enthalpies of formation for ethanol in the liquid and gaseous states are -277.7 and -235.1…

A: Formula used :     Tb = delta H/ delta S

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A:

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Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Given;

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A: The heat change that occurs in the formation of any compound that amounts 1 mole is called enthalpy…

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A: To calculate the delta E , we would use the formula : ∆E = q /n  q = heat  n = moles

Q: Calculate the H for the reaction: CS2 + 2 O2 --> CO2 + 2 SO2. The heats of * formation (in kJ/mol)…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

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A: A) the quantity ∆H is dependent on the pathway to which this value is computed.

Q: If ΔH° = 280 kJ/mol and ΔS° = 258 J/mol · K, above (>) or below (' (greater than) or '67)

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Q: A reaction takes place inside a constant pressure calorimeter. The heat absorbed by the calorimete O…

A: At constant pressure the heat absorbed by the calorimeter is equal to the enthalpy of the reaction .

Q: Q4) A) What is the difference between R and Ru and how these two are related. B) What is the…

A: The difference of R and Ru and also difference between the first and second law is given below.

Q: Answer Question number 6

A: The standard enthalpy of formation for the reactants and products are – Al (s) = 0 kJ/mol Fe2O3 (s)…

Q: = -56.04 J/g. Based on this data, calculate 4. The freezing of benzene is exothermic with a AH, the…

A: Given: The moles of benzene = 1 mol. The mass of 1 mol of benzene = 78.11 g. The ∆HFreezing= -56.04…

Q: Use ASuniv to determine if the reaction: NH3(g) + HCI( g) -> NH4CI(s) is spontaneous at 375.0 \deg C…

A: Given that, the reaction is:

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Q: he tollowig beaction: ー3 K)

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Q: if delta h is -720.44 kJ/mol and delta s is -263.58 J/molK,at what temprature in kelvin is the…

A: Given, Chemical Reaction :: P2(g)+3Cl2 (g) -->2PCl3 ∆H° = -720.44 kj/mol ∆S° = -263.58 J/mol.K

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Q: a. Calculate the amount of energy involved when 300. mL of 2.00 M NaOH is mixed with 400. mL of 1.00…

A: 2 NaOH (aq) + H2SO4 (aq)→Na2SO4 (aq) + 2 H2O (l) ΔHrxno = [ΔHfo (products) -  ΔHfo (reactants)] heat…

Q: (a) 2H2O2(1) 2H20(1) + O2(g) (b) HCI(g) + NAOH(s) NaCI(s) + H2O(1)

A:

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Q: Macmillan Learning Consider the following reaction. 2 CH3OH(g) 2 CH₂(g) + +0₂(g) Is this reaction…

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Q: General Chemistry student performed the “Thermochemistry” lab and obtained the following results:…

A: The mass of KCl is 5.550 g. The volume of water is 0.0450 L. The value of ∆T is -15.0 C.

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Q: Calculate AS for the following reaction using the table below: NO (g) + O3 (g) = NO2 (g) + O2 (g)…

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Q: 18. Which of the following four molecules are polar: PH3, OF2, HF, SO,? (a) all except SO, (b) only…

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A: Calculate the enthalpy of the given combustion reaction--

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Q: stion 16 Consider the following reaction at 25cf PpCI5=D0.0029 atm, PpC13= 0.27 atm, and PC12= 0.40…

A: M

Q: The balanced equation for the reaction of ethanol and oxygen is the following. 2 C₂H5OH(g) + 6 O₂(g)…

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Q: help

A: Basically two type of calorimetry is used in the lab.  1- First one is bomb calorimeter : in this…

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