Calculate the ΔH of formation of magnesium nitrate:    Mg(s) + N2(g) + 3O2(g) ---> Mg(NO3)2(s)   Given the following data. (ΔH° in kJ)   8Mg(s) + Mg(NO3)2(s) ---> Mg3N2(s) + 6MgO(s) ΔH° = −3280.88 Mg3N2(s) ---> 3Mg(s) + N2(g) ΔH° = +461.08 2MgO(s) ---> 2Mg(s) + O2(g) ΔH° = +1203.60

Q: If ΔHΔHDH = -70.0 kJkJ and ΔSΔSDS = -0.200 kJ/KkJ/K , the reaction is spontaneous below a certain…

A: In this question we want to determine the temperature ( below this Temperature Reaction is…

Q: the following reaction 2 NO (g) +  O2 (g) -> 2 NO2 (g) Horxn = -12 kJ and Sorxn = -146 J/K. a.…

A: Given-> 2NO(g) + O2(g) ---> 2NO2(g) ∆H°rxn = -12 KJ = -12000 J (1 KJ = 1000J) ∆S°rxn = -146J/K…

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: Calculate ΔG°rxn (in kJ) for a reaction where ΔH°= +63 kJ, ΔS°= +675 J/K, and T = 298 K

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Q: Use the 2 equations provided below to calculate the delta H of reaction for the formation of solid…

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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: Calculate the entropy change, AS° for the following processes, a. vaporization of ethyl alcohol,…

A: Entropy is a measure of disorder or randomness of a substance. Change in entropy is defined as the…

Q: Consider the reaction: 2KClO3(s)~2KCl(s)+3O2(g) At a standard state, △G for the reaction is -35kJ.…

A: The value of gibbs free energy change helps us to find if the reaction at a particular temperature…

Q: Given Δ H system = -144 kJ and Δ S system = -36.8 J/K for a reaction,determine the lowest…

A: Condition for spontaneous reaction is ΔGsystem < 0 . Formula  ΔGsystem = ΔHsystem - TΔSsystem  0…

Q: Calculate the entropy change, AS° for the following processes, a. vaporization of ethyl alcohol,…

A: When a liquid compound is converted into gaseous compound, such process is known as evaporation…

Q: Calculate how much heat (in kilojoules) a hand warmer containing 23.0 g of iron powder produces.

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Q: For the reaction of xenon and fluorine gases to form solid XeF4, ΔH° = -251 kJ and ΔG° = -121 kJ at…

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Q: For the reaction, 4KClO3(s) → 3KClO4(s) + KCl(s) Calculate ΔGosys for the process at 298 K if…

A: ∆Gsyso = ∆Hsyso - T ∆Ssyso  where     ∆Hsyso = Standard enthalpy change of system = - 144.3 KJ x…

Q: 2 ClO2 (g)   +  2 TiCl4 (l)    →     2 TiO2 (s)   +   5 Cl2 (g)         Delta H =  – 343.8 kJ when…

A: Please have a look on the solutiion:

Q: The ∆H and ∆S for the decomposition of sulfur tetrabromide to sulfur and liquid bromine is +115 kJ…

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Q: A reaction has the following thermochemical values at 272.15 K: ΔH = -189.3 kJ mol-1 ΔS = -166.0 J…

A: Given-> Temperature (T) = 272.15 K ∆H = -189.3 kJ.mole-1 = -189300 J.mole-1(1KJ=1000J) ∆S =…

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: For a particular reaction, Δ?∘=−28.4 kJ/mol and Δ?∘=−87.9 J/(mol⋅K). Assuming these values change…

A: Given: ΔHo = -28.4 KJ/mol = -28400 J/mol. And the value of ΔSo = -87.9 J/mol.K.

Q: Suppose that a house and its exterior are both initially at 31 °C. Sometime after the air…

A: Spontaneous process is one which proceeds on its own and does not require any external assistance.…

Q: For a reaction, Delta H = -145 kJ and Delta S = 220 J. Is the reaction spontaneous? O Always O At…

A: We know ; ∆G = ∆H - T∆S When the Value of ∆G is negative , then the Reaction is spontaneous . &…

Q: Vhich of the following statements is TRUE regarding the spontaneity of the exothermic reaction isted…

A: Q. Which of the following statements is True regarding the spontaneity of the exothermic reaction…

Q: Is the formation of ozone (O,(g)) from oxygen (O2(g)) spontaneous at room temperature under standard…

A: Spontaneity of a reaction is decided by the sign of ∆G° of reaction.

Q: 2 O3(g) → 3 O2(g) ΔS∘∘ = 137.4 J/K; ΔH∘∘ = −285.4 kJ Calculate ΔG∘∘ at 55°C and determine…

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Q: Which of the following would be expected to have positive entropy change?   Cooling of nitrogen…

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Q: H,0, (1) decomposes to H,0 (1) and 0,(g) at constant pressure by the following reaction: 2H,02 (1) →…

A: Exothermic reactions are those reactions in which heat is released. On the decomposition of two…

Q: For the oxidation of iron to form iron(III) oxide: 4Fe(s) + 3O2(g) ⟷⟷ 2Fe2O3(s)…

A: ΔSo = –549.73 J∙K–1 T = 298K ΔH = –824.2 kJ∙mol–1 = -824200 Jmol-1

Q: For the reaction at 298 K, the values of H and S are 58.03 kJ and 176.6 J/K, respectively. What is…

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Q: Coal can be converted to methane, a chief component of natural gas, according to the following…

A: To solve this problem we have calculate  ∆Gº and Kp for the given  reaction at 25ºC .

Q: For the following reaction: SO2 (g)_± ½ O2(g)→ SO3(g) For this reaction to be spontaneous, what must…

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Q: For the reaction below ∆G° = + 33.0 kJ, ∆H° = + 92.2 kJ, and ∆S° = + 198.7 J/K. Estimate the…

A: We wil use the Gibbs helmholtz equation to calculate the temperature when ∆G is zero. And above this…

Q: A sample of solid (NH4)(NH2CO2) is placed in an evacuated container at 25°C, and it decomposes as…

A: Given data is: NH4NH2CO2(s)⇌2NH3(g)+CO2(g) Kp=2.31×10-4T=25°C=273+25=298K…

Q: For the following decomposition reaction of ozone, O3 to form oxygen, O2. 2O3(g) →3O2(g) a)…

A: For a reaction to take place, some amount of energy is required. This energy is required to do work,…

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: For a particular reaction, Δ?∘=67.7 kJ/mol and Δ?∘=126.9 J/(mol⋅K). Assuming these values change…

A: Given : ΔHo of reaction = 67.7 KJ/mol = 67700 J/mol…

Q: When 4.04 g of solid NH4NO3 dissolves in 50.0 g of water at 26.0°C in a calorimeter, the temperature…

A: Given that: Weight of NH4NO3 = 4.04 g  Heat (q) = 1.29 kj  Molar mass of NH4NO3 = 80 g/mole Enthalpy…

Q: What is the free energy change for the process shown here under the specified conditions? T = 25…

A: We know that ∆G = ∆G° + RTlnQ ..(1) Here, Q = pH2^3*pN2^1/pNH3^2 = (0.250)^3(0.870)/(12.9)^2 =…

Q: Suppose that a reaction has AH = -28 kJ and AS= -60 J/K. At what temperature will it change from…

A: We have to predict the temperature.

Q: The AH and AS for the decomposition of sulfur tetrabromide to sulfur and liquid bromine is +115 kJ…

A: The decomposition of sulfur tetrabromide to sulfur and liquid bromine reaction can be written as…

Q: Given the following reaction: 2NO(g) + Cl2(g) 2NOCl(g) DHorxn = -75.5kJ 1. Is the reaction…

A: The reaction taking place is given as, => 2 NO (g) + Cl2 (g) -------> 2 NOCl (g)…

Q: For each reaction with ΔH = + 245 kJ/mol and ΔS = + 48 J/molK ,at what temperature at which the…

A: The question is based on the concept chemical thermodynamics.   We have been given entropy &…

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

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Q: Calculate ΔH° for the process Sb(s) + 52Cl2(g) ⟶ SbCl5(s) from the following information: Sb(s)…

A: According to the Hess’s law of Constant heat Summation, regardless of the number of steps or stages…

Q: Priestley prepared oxygen by heating mercury(II) oxide. From the data given below estimate the…

A: Goven-> ∆H°=90.83 KJ =90830 J  S°(Hg) = 76.02 J/mole.K S°(HgO) = 70.29J/mole .K S°(O2) = 205.0…

Q: When two crystalline solids X and Y are mixed in a beaker at room temperature, a spontaneous…

A: Given: Temperature is decreased or low Reaction is spontaneous

Q: What is the sign of delta H and delta S for the reaction X(g) + Y(g) = XY(g) and state under what…

A: The above reaction is          X (g) + Y (g) → XY (g) Breaking of bonds requires absorption of…