Which process is spontaneous at 298 K?a. H2O(l )--->H2O(g, 1 atm)b. H2O(l )--->H2O(g, 0.10 atm)c. H2O(l )--->H2O(g, 0.010 atm)

Q: Ozone in the lower atmosphere is a pollutant that can form by the following reaction involving the…

A:

Q: A reaction is nonspontaneous at room temperature but is spontaneous at -40oC. What can you say about…

A: To determine the signs and relative magnitudes of ∆H, ∆S, and -T∆S.

Q: Which one of the following reactions is spontaneous at all temperatures? (hint: determine AS by…

A: Spontaneous reaction is the reaction which can occur naturally.  For these reactions, change in…

Q: By is an exothermic reaction. 1) Ag) Analyze when this reaction is spontaneous (i.e. spontaneous at…

A:

Q: Which one of the following is always positive when a spontaneous process occurs? * AH(sys +sur)…

A: The second law of thermodynamics gves the insight of the direction of any spontaneous process.

Q: Which process is spontaneous at 298 K? H2O(g, 1 atm) a. H20(1) – b. H20(1) c. H20(1) - H,O(g, 0.10…

A: To find: The process which is spontaneous at 298K

Q: Arrange each group in order of decreasing standard molar entropy (S°). Explain.(a) ClO4-(aq),…

A:

Q: For a particular reaction, Δ?=−238.4 kJ/molΔ⁢H=−238.4 kJ/mol and Δ?=−80.0 J/(mol·K).Δ⁢S=−80.0…

A:

Q: Which of the following processes are spontaneous?(a) A satellite falls to Earth. (b) Water…

A: A spontaneous process occurs by itself (possibly requiring an initial input of energy) whereas a…

Q: Which of the following is a spontaneous process? A. A ball rolls up a hill B. A fruit turns yellow…

A: Given processes, A. A ball rolls up a hill B. A fruit turns yellow as it ripens C. Ice is formed at…

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

A: For a process to be spontaneous ΔG should be negative. and ΔG=ΔH-TΔS For exothermic reaction ΔH is…

Q: Calculate ΔG for the following reaction at 30°C. Will the reaction occur (be spontaneous)? How do…

A:

Q: For a process with AH 0 O Never. O AE > 0 O AS > 0

A: A reaction is said to proceed spontaneously at any temperature if the enthalpy decreases and the…

Q: 15) Consider the reaction for the decomposition of carbon tetrachloride gas: CCIA(g) C(s, graphite)…

A:

Q: Change Is this change spontaneous? O Yes. A solid precipitates from a solution, releasing heat as it…

A:

Q: For the process, CO 2 (s) -> CO 2 (g), this process (and explain why) A. is always spontaneous B. is…

A: For any process to be spontaneous, the free energy change must be negative.delta G = delta H - T…

Q: The crystalline hydrate Cd(NO3)2 .4H2O(s) loses waterwhen placed in a large, closed, dry vessel at…

A: a) The process is spontaneous at room temperature. The standard enthalpy change for the reaction is…

Q: For the reaction H2(g) + S(s) --> H2S(g), ΔH° = -20.2 kJ/mol and ΔS° = +43.1 J/K·mol. Which of…

A: Given: ΔH° = -20.2 kJ/mol  ΔS° = +43.1 J/K·mol   Chemical reaction: H2(g) + S(s) → H2S(g)

Q: At what temperature/temperature range does this reaction become spontaneous? Explain your reason.…

A: Given, Br2(l)⇔br2(g)and△H=30.91kJ△s=0.0933kJ/Kwe know that ;△G=△H-T△Swhere, △G= Change in Gibb's…

Q: 17. For the reaction: A + B → C AH°= +300 kJ/mol and AS° = +200 J/K.mol. At what temperature will…

A: Given, ∆H° = 300kJ/mol ∆S° = 200J/K.mol

Q: Solid N205 reacts with water to form liquid HNO3. Consider the reaction with all substances in their…

A:

Q: Consider the following reaction: N2(g) + 3H2(g) ⇄ 2NH3(g) A. When would this reaction be…

A: Reaction :                                   N2(g) + 3H2(g) ⇄ 2NH3(g)…

Q: CCl4 (l)    CCl4 (g)      At what temperature does the phase change become spontaneous?  (Give in…

A: Answer is explained below.  For this problem required thermodynamic parameters are as follows:

Q: Under certain conditions, nitrogen gas and oxygen gas react to form the toxic brown gas nitrogen…

A: The standard Gibbs free energy, △Go is given as : If the value of △Go is positive or greater than…

Q: SO2(g)+2H2S(g) --> 3/8S8(s)+2H2O(g)  at what temperature does the reaction become spontaneous?

A: Since the reaction becomes spontaneous when the net gibbs free energy change of the reaction becomes…

Q: For a reaction to be نقطة واحدة spontaneous, the sign of Gibbs Free Energy G is The sign of G has no…

A: For a reaction to be sponteneous, the sign of Gibbs free energy is always negative.

Q: Find the temperatures at which reactions with the following ΔH and ΔS values would become…

A: Given: a) ΔH= -126 kJ/mol,   ΔS = 84 J/K.mol We need to find out temperature at which reaction is…

Q: for this reaction: H2O(g) →  H2O(l) → (gets hot, s

A: When water changes its states from gas to liquid there is a change in states of water from gaseous…

Q: What is the entropy when 1.53 moles of CCl,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Number of moles of CCl2F2, ∆H(vap) and the temperature for which entropy is to be determined.

Q: Deposits of elemental sulfur are often seen near active volcanoes. Their presence may be due to the…

A:

Q: One of the following processes is spontaneous at 298 K Which one? 1. H2O(l)-H2O(g, 1 atm) 2.…

A: One of the following processes that is spontaneous at 298 K is to be determined.

Q: b. Assume AH and AS° are constant with respect to a change of temperature. Now calculate AG° at…

A: b) ∆G°T = -334.34 kJ c) The correct option is (c): The reaction will be spontaneous at both 25°C and…

Q: Which of the following phase changes is not spontaneous at room temperature? Assume only the first…

A: Correct answer is (D) H₂O(g) → H₂O(s) At room temperature steam cannot convert into solid phase, so…

Q: For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen:             2HgO(s)…

A: Solution : the standard Gibbs free energy of formation (Gf°) of Mercury (II) oxide is -58.6 KJ.mol-1…

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: Consider the reaction: FeO (s) + Fe (s) + O2 (g) Fe203 (s) Given the following table of…

A: FeO(s) + Fe(s) + O2 ----> Fe2O3(s)

Q: The process of iron being oxidized to make iron(III) oxide(rust) is spontaneous. Which of these…

A: The process of rusting of iron is an important phenomenon and it indicates an oxidation reaction. It…

Q: Calculate AGO at 25°C, given the values of AHO = - 844 kJ/mol and -165 J/mol-K.wt a. AS° b. At what…

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

Q: The figure represents the spontaneous deposition of iodine in which iodine vapor, I2(g), becomes…

A:

Q: 17. For the reaction: A + B C AH°= +45 kJ/mol and AS° = +60 J/K.mol. At what temperature will this…

A: For the reaction: A + B  →C ∆H°= +45 kJ/mol ∆S° = +60 J/K.mol.  For a spontanseous reaction ∆G°<0…

Q: Indicate whether each process is spontaneous or nonspontaneous. a. water vapor condensing at 50 °C…

A: Answers are explained below.

Q: Consider the following process:  F2(l) ->F2(s) The process is spontaneous at --- temperatures when…

A:

Q: Consider the reaction for the decompositon of carbon tetrachloride gas: CCl4(g) ⟶ C(s, graphite) + 2…

A: For the given reaction,△H = +95.7 kJ = 95700 J    (1 kJ = 1000 J)△S = +142.2 J/KTemperature, T = 25…

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: Consider the reaction for the decomposition of carbon tetrachloride gas:CCl4(g)¡C(s, graphite) + 2…

A: (a) The given reaction is, CCl4g→Cs,graphite+2Cl2g ∆H=+95.7 kJ∆S=+142.2 J/KT=25°C=25+273K=298 K

Q: 8) a) Calculate AS°en for the following reaction given their respective standard molar entropy…

A: The standard entropy of the reaction can be calculated as follows-

Q: 51. Consider the reaction (8)*0 • 20(g) → 0;(g) a. Predict the signs of AH and AS. b. Would the…

A: Here, by analyzing the equation we have to predict the sign for change in enthalpy and change in…

Q: Which of the following is spontaneous at SATP?

A: CaCO3(s)+178 kJ→CaO(s)+CO2(g)  B option is spontaneous reaction at STP.  In the above reaction ∆S is…

Q: If either of the reactions is nonspontaneous but can become spontaneous, at what temperature might…

A: The relation between free energy and enthalpy is shown below: ∆G = ∆H -T∆S where; ∆G = change in…