Consider the reaction 2Hg (l) + O2 (g) → 2HgO (s), for which ∆H°= -181.7 kJ/mol and ∆S°= -216.5 J/molK. Which of the following statements regarding its temperature dependence is true? A. This reaction is nonspontaneous at low temperatures and spontaneous at high temperatures. B. This reaction is nonspontaneous at all temperatures. C. Insufficient data are proven to ascertain the temperature dependence of the reaction. D. This reaction is spontaneous at low temperatures and nonspontaneous at high temperatures. E. This reaction is spontaneous at all temperatures.

Q: Which involves the greatest increase in entropy? O A. H20 (s, 0°C) H20 (I, 0°C) O B. H20 (I, 0°C)→…

A: Entropy is defined as the degree of randomness of a system and it increases for a spontaneous…

Q: 8.82. The reaction N‍2(g)+3H2(g)->2NH3(g) is spontaneous at room temperature but becomes…

A: Given, The relationship between ∆Go, ∆Ho and ∆So is given by

Q: Which of these reactions is expected to be spontaneous at all temperature?          (A

A: We have to tell which reactions is expected to be spontaneous at all temperature

Q: Which scenario results in decreased entropy? A Temperature of crystalline solid is increased from 0…

A: We know that entropy of substance in different phase are Ssolid<Sliquid<Sgas And entropy of…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: According to the question about the formation of ammonia we have, The Change (decrease) in the…

Q: Which process results in the increase in entropy of the universe? a) the cooling of a hot cup of…

A: To find: The process which results in the increase in the entropy of the universe.

Q: Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶…

A: For a reaction to be spontaneous ,    should be negative Hence  value of should be greater than ,

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 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 the gaseous reaction of carbon monoxide and chlorineto form phosgene (COCl₂):(a) Calculate ΔS°…

A: Gibbs free energy is related to enthalpy change and change in entropy at constant temperature as,…

Q: At what temperature will a reaction become spontaneous, if its AS is +100.3 J/mol and AH° is +48.90…

A: Given : ΔSo = 100.3 J/mol. And ΔHo = 48.90 KJ/mol = 48900 J/mol.…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: Which substance has the higher entropy?(a) dry ice (solid CO2) at -78°C or CO2(g) at 0 °C(b) liquid…

A: Entropy is defined as the degree of randomness or disorderliness of the System.   if the molecules…

Q: Which process should show the greatest increase in entropy? Select one: a. N,(g) + 0,(g) 2 NO(g) Ob.…

A: Entropy of a system depends upon the mass of the system. Mass of the system is directly proportional…

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: Calculate the DeltaG° rxn using the following information at 25°C. And determine wether the reaction…

A:

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

A: Spontaneous reaction : A reaction is called spontaneous, if the product formation occurs in a given…

Q: d Silver nitrate is added to a solution of sodium chloride and a precipitate forms. spontaneous…

A: Here we have to predict whether the following given reactions are spontaneous or nonspontaneous…

Q: 2 NH3 (g) + 2 O2 (g) → N20 (g) + 3 H20 (g) Is this reaction spontaneous only at low temperatures,…

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Q: Adding sidewalk deicer (calcium chloride) to water causes the temperature of the water to increase.…

A: A crystal of CaCl​​​2 is highly ordered. Strong ionic bond holds the anions and cations together in…

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

A:

Q: 11.11 A student was asked to propose three reactions for the oxidation of carbon or a carbon…

A: For a reaction to be spontaneous: ∆G=-ve (spontaneous)∆G=+ve (non-spontaneous) For the reaction: a)…

Q: g_2021 [References] Chloroform, CHC13, is a solvent and has been used as an anesthetic. The heat of…

A:

Q: A chemist fills a reaction vessel with 7.73 atm chlorine (C1₂) gas, 8.12 atm phosphorus (P4) gas,…

A:

Q: Which two of the following are spontaneous processes? (Circle only two): a) rusting of an iron nail…

A: A reaction which occurs without the input of energy is called a spontaneous reaction.

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: 2.6. The reaction COXg) H2(g)-> CO(g) + H20(g) is not spontaneous at room temperature but becomes…

A:

Q: The value of AHtransition of C(graphite)-C(diamond) is 1.9 kJ/mol at 25 °C. Entropy of graphite is…

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Q: The entropy will usually increase when I. a molecule is broken into two or more smaller molecules.…

A: Entropy can be defined as the randomness or disorderness. Higher the number of gaseous molecules,…

Q: Determine whether an example is spontaneous process (SP) or a non-spontaneous process (NSP). 6. ball…

A: A spontaneous process is a process which occurs without input of matter or  energy into the system.…

Q: Predict whether each process is spontaneous as described, spontaneous in the reverse direction, or…

A: A reaction is spontaneous if ∆S is positive. Entropy (S) is the measure of degree of randomness.…

Q: For each pair listed below, which choice has the substance with the highest entropy listed first?…

A: Entropy is a measure of the energy dispersal in the system. It is the measure of a system's thermal…

Q: A student calculated that for a given reaction, ΔS = 22 J/K and ΔH = 6,028 Joules. At which…

A:

Q: Acetone, CH; COCH3 , boils at 56°C. The heat of vaporization of acetone at this temperature is 29.1…

A: Given: Boiling point temperature= 56 C=329.15 K Heat of vaporization= 29.1 kJ/mol

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: 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: For:                     2 NO (g)  +  Cl2 (g)   →  2 NOCl (g)    the ΔHo is −37.78 kJ and ΔSo is…

A: Le chatelier's principle states that when a physical change is applied to any reaction present at…

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

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Q: 4. The entropy will usually increase when 1. a molecule is broken into two or more smaller…

A:

Q: Consider the evaporation of methanol at 25.0 ∘C: CH3OH(l)→CH3OH(g). a) PCH3OH=154.0mmHg Express the…

A: The given reaction and the Standard Gibbs free energy is calculated as follows,

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

A: Answers are explained below.

Q: 2 NH3 (g) + 2 02 (g) → N20 (g) + 3 H20 (g) Is this reaction spontaneous only at low temperatures,…

A:

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: 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: 45. If a chemical reaction has a positive change in entropy, AS, then: A) the reaction is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the temperature in kelvins above which this reaction is spontaneous.

A: We have to Calculate the temperature in kelvins above which this reaction is spontaneous.

Q: the decomposition of hydrogen peroxide to water and oxygen,         H2O2(g) ⟶⟶ H2O(g) + O2(g) ΔΔH°…

A:

Q: Tungsten trioxide (WO3) is a dense yellow powder that, because of its bright color, is used as a…

A: Reaction: WO3(s) + 3H2(g) → W(s) + 3H2O(g) Condition for spontaneous reaction: ∆G∘ of reaction must…

Q: 19.) Consider the following reaction, determine the temperature at which it is spontaneous? SO3 (g)…

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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…