The sublimation of carbon dioxide at -78°C is Calculate ∆Ssub when 24.8 g of CO2 sublimes at this temperature. (Mw (CO2= 44 g/mol)

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: The dissolution of ammonium nitrate occurs spontaneously in water at 25 °C. As ammonium nitrate…

A: On dissolution, the temperature of the reaction decreases which means that the reaction is…

Q: 6. Consider the reaction: CH,OH(/) + 30:(g) If the reaction mixture expands under constant pressure…

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Q: For the reaction below at constant pressure and 298 K, ΔSsurroundings = ____ kJ/mol.   N2(g) +…

A: ∆S(surrounding) = - ∆H / T

Q: What is the sign for each of the following? (Change in) a. S, H, G for the evaporation of a…

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Q: The space shuttle uses the following reaction to drive it's reusable rocket boosters. 3Al(s) +…

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Q: Q4) a) Explain why AStusion and ASyaporization are always positive? b) Natural gas is composed of…

A: In fusion process, solid form a substance is converted into gaseous form of the substance and in…

Q: For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl2), perform the…

A: Given,ΔHo = −220. kJ/molΔGo = −206 kJ/molTemperature = 298 K

Q: 1. Consider the freezing of liquid water at -10°C and 1 atm. For this process, what are the signs…

A: Exothermic transitions are those transitions that release heat for example freezing and condensation…

Q: Consider the oxidation of carbon monoxide:CO(g)+1/2 O₂(g) →CO₂(g) (a) Predict the signs of ΔS° and…

A: The standard Gibbs free energy of a compound is the free energy change of a chemical reaction…

Q: Under the standard state and 260 °C, the solid of ammonia hydroxide NH4OH (s) decomposes explosively…

A: NH4OH (s)  ==> NH3 (g) + H2O (g)

Q: Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3H6O) freezes at…

A: The given mass of acetone = 45.0 g The molar mass of acetone = 58.08 g/mol The moles of acetone are…

Q: Ozone (O3) in the atmosphere can react with nitric oxide (NO):          O3(g) + NO(g) --> NO2(g) +…

A: Record the given data, ΔH° = -199 kJ/mol ΔS° = - 4.1 J/K·mol Temperature, T = 25° C = 25 + 273 K =…

Q: For 2-methylbutane, the ∆H° of vaporization is 25.22 kJ/mol and the ∆S° of vaporization is 84.48…

A: Given:  The ∆H° of vaporization for 2-methylbutane =  25.22 kJ/mol The ∆S° of vaporization for…

Q: 6.) The diagram below shows the deposition of iodine vapor at room temperature. Which statement is…

A: The ordered system is the indication of low entropy. While less orderliness is the indication of an…

Q: Draw the complete t hanism for one of the two processes... но Он H+ 人. H,O* но OH

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Q: Dissolution of Sodium Hydroxide mass of water: 200 g initial temperature of water: 20°C final…

A: Given: ΔH of NaOH dissolution: -44.53 kJ/mol To answer: The change in temperature when NaOH is…

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: 40 mL 2M NaOH and 20 mL 2M H2SO4react in a cup. The temperature increases by 18.8 °C, how do you…

A: Given : molarity of NaOH and H2SO4= 2 M.…

Q: N,(g) + 0,(s) + heat ® 2 NO (g) A) Does the tendency to minimum enthalpy favor reactants or…

A: Tendency of minimum enthalpy and maximum entropy can favour products or reactants of a reaction…

Q: each process or reaction given below, predict the sign for each of the properties listed. Predicted…

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Q: Above what temperature does the following reaction become nonspontaneous?         2 H2S(g) + 3…

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Q: (a) Is an endothermic reaction more likely to be sponta-neous at higher temperatures or lower…

A: Since you have posted multiple questions, we will solve only one question for you. If you any…

Q: If heat from the surroundings was absorbed by the system, and the products were more ordered than…

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Q: Consider the reaction: H20(!) → H20(g) at 110°C Which of the following shows the correct signs or…

A: We have to show the correct signs or values for ∆H,∆S and∆G as follows in step 2:

Q: At 25 degrees C, what are the signs of deltaH, deltaS, and deltaG for I2(s)-->I2(g)?

A: In this question, we will Identify the signs for ∆H, ∆S and ∆G for given Reaction.  You can see…

Q: 5. Two white crystalline forms of phosporus. Both forms contain P4 moleculesbut the molecules are…

A: For the transformation of α-form to β-form is spontaneous process in which enthalpy change (ΔH) for…

Q: Calculate the ∆G⁰reac value for the following reaction walking at 298 Kelvin. CO (g) + ½ O2 (g) ↔…

A: Given that, The required chemical reaction as follows --- CO (g)    +    ½ O2 (g)    ↔    CO2 (g)…

Q: The solubility for manganese (II) fluoride in water is 6.6 g/mL at 40 degrees C and 4.8 g/L at 100…

A: Given data:

Q: Determine the AH° for the overall reaction based on the three-step thermochemical processes below:…

A: ∆H values -  Reaction 1 = 167.5 KJ  Reaction 2 = 341.4 KJ  Reaction 3 = 43.4 KJ  Final reaction = ?

Q: What is the lowest temperature at which the reaction of C(s) with H2O(g) to produce H2(g) and CO(g)?…

A: The lowest temperature would be 981..3153°C.

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: A possible reaction for converting methanol to ethanol is; CO(g)  +  2H2(g) +   CH3OH(g)        -><-…

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Q: The decomposition of calcium carbonate is given by the reaction, CaCO3(s) → CaO(s) + CO2(g).…

A: (a)The reaction for the decomposition of one mole of calcium carbonate is obtained by reversing the…

Q: When 6.78 g of solid ammonium nitrate dissolves in 50.0 g of water at 18.9oC, the temperature of the…

A: Given:Specific heat of water = 4.18 J/g. oCMass of ring = 50 gMass of ammonium nitrate = 6.78…

Q: Consider a process which has ΔSuniv > 0 at 25°C. Which of the following statements is/are always…

A: Given that : We have to identify which of the following statements is/are always true : I) The…

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

A: Spontaniety of a reaction is decided by ∆G value(Gibbs free energy)  ∆G = ∆H - T∆S Where ∆H is the…

Q: 6. Consider the reaction: N204(g) + 2NO2(g) Calculate AG for the reaction above at a temperature of…

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Q: Determine q

A: q = mc∆T  q is the amount of heat energy absorbed or released m is the mass of substance  c is the…

Q: For the chemical reaction represented by  C+O2->CO2+394 kJ what is the delta H for the…

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Q: A mathematical interpretation of First Law of Thermodynamics is: O a. Q=ART O b. Q=AU + A C. Q=RT

A: Given  First law of thermodynamics

Q: The normal melting point of ethylene glycol, C₂H6 O2, is -12.7 °C. For the process of melting, what…

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

A: Use relation  ∆G= ∆H-T∆S And ∆G= -2.303RTlogK ∆G=23943.95kj/mol Kc= 6.3×10-5

Q: Using the provided table, determine the enthalpy for the reaction 2 K(s) + 2 H20(1) → 2 KOH (aq) +…

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Q: 2. Predict the sign of ASsys for each process. a. A piece of wax melts. Positive b. Silver chloride…

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Q: 2 ΔΗ for the vaporization of benzene is 31.0 kJ/mol, and the boiling point (at atm of pressure) is…

A: We have been given that

Q: At 1 atm pressure, CO2(s) sublimes at -78 °C. Is this processspontaneous at -100 °C and 1 atm…

A: Sublimation is defined as the process where a substance undergoes transition from the solid phase…

Q: reaction Ag2O → 2Ag(s) + 12O2(g), ΔH = 30.56 KJ mol− and ΔS = 66 J K−1 mol at 1 atmosphere pressure.…

A: □H = 30.56 kJ/mol □S = 66 J/K-mol □G = □H - T □S

Q: The value of ΔG° at 141.0°C for the formation of phosphorus trichloride from its constituent…

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Q: 10.43 Which reaction occurs with the greater increase in entropy? Explain your reasoning (a) 2 NO(g)…

A: In nature, every processes have an inclination to progress to a state of larger randomness. The…