How many of the following processes below exhibit a positive entropy change? I.    methane (g)  +  water (g)  →  CO (g)  +  3 H2 (g) II.   methanol (s)  →  methanol (l) III.  nitrogen (g)  +  3 hydrogen (g)  →  2 ammonia (g) IV.  K2SO3 (s)  +  H2O (g)  +  SO2 (g)  →  2 KHSO3 (s)

Q: HgC သိ 0. H3C. 5. =0 =O

A: Entropy is defined as degree of randomness or disorderliness present in a molecule.If a molecule is…

Q: From this reaction 2NO(g) + 2H₂(g) à N₂(g) + 2H₂O(1), NO H2 N2 Sᵒ (J/mol K) 75.10 191.5 192.3 AH°f…

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Q: Without doing a calculation, predict whether the entropy change will be positive or negative when…

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Q: Which reaction below would result in a net decrease in entropy?   I2(g) ↔ 2I(g)   N2O(g) + 2H2O(g)…

A: Entropy is the measure of randomness or we can say that if a system is more disordered then its…

Q: Which of these processes result in an entropy decrease of the system?

A: Entropy means randomness. All spontaneous processes have positive or zero entropy change. This means…

Q: "he heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy…

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Q: Which of the following reactions is likely to have the most negative change in entropy? a. NH3(g)…

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Q: 8. For which of the following reactions will the entropy of the system decrease? a) CuSO. (s) + H20…

A: Entropy is the measure of randomness or disorderness of the system.  More is the randomness in the…

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Entropy is a thermodynamic quantity that is a measure of randomness. The more entropy, the more will…

Q: When heated, CaCO₃ decomposes into CaO and CO₂ according to the following equation: CaCO₃(s) ⇌…

A: Given data :

Q: Please mark all processes that produce a decrease in the entropy: 2 SO3(g) ® 2 SO2(g) + O2(g)…

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Q: When heated, CaCO₃ decomposes into CaO and CO₂ according to the following equation: CaCO₃(s) ⇌…

A: Answer:Given data:

Q: In which is there a positive entropy change? A. Magnesium combusts in air to form Magnesium oxide B.…

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Q: for which of these is there an increase in entropy? CaCO3(s) -> CaO(s) + CO2(g) NH3(g) + HCl(g) ->…

A: Answer: option1. CaCO3(s) -> CaO(s) + CO2(g) for this reaction entropy increases.

Q: A metal alloy melts with an enthalpy change of 75 kJ/mol and an entropy change of 133.0 J/K.mol.…

A: For the melting of alloy, Enthalpy change (∆H) = 75 kJ/mol…

Q: For the reaction: F2 (g) → 2 F (g) Which is true about the enthalpy and entropy of reaction?…

A: The given reaction is the non-spontaneous process and it is endothermic reaction. F2 (g) → 2 F (g)

Q: Determine whether entropy increases or decreases for the processes shown below. Entropy increases No…

A: Entropy of a system is defined as the randomness of that system. Among 3 phases of matter ramdomness…

Q: Which of the following cases has a decrease in entropy? Vaporization of water. Formation of H20 (g)…

A: The disorderness of the system is called as entropy. It is expressed by S . The standard entropy at…

Q: The normal freezing point of CCl4 is -23 °C. When CC 4 melts at -23 °C and 1 atm. pressure, the…

A: The objective of the question is to determine the change in entropy of the universe when CCl4 melts…

Q: Which of the following reactions has a positive change in entropy, ∆S? Choose ALL that apply. Group…

A: Second law of thermodynamics:In Second law of thermodynamics, the change in gibb’s free energy at…

Q: Which of the following reactions indicates an increase in entropy?

A: In case of homogeneous gaseous reaction :- if number of gaseous moles of products are more than the…

Q: What is the entropy change when 2.50 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Given data is  Moles of CCl2F2 vaporized  = 2.50  ∆H(vap) = 17.2 kJ/mol at 25.0 °C

Q: The vaporization of methanol CH₃OH(l) ⇌ CH₃OH(g) is an endothermic process in which ∆Hvap = 37.4…

A: ∆Hvap = 37.4KJ/mol ∆Svap = 111 J mol-1K-1  Boiling Point at 605 torr =? 605 torr = 0.796053 atm  R =…

Q: The change in entropy, Δ?∘rxn, is related to the the change in the number of moles of gas molecules,…

A: Change in number of moles in a reaction is calculated by subtracting the moles of gaseous reactants…

Q: Which reaction would have a negative entropy change? Circle it. Ag+ (aq) + Cl(aq) → AgCl(s) N₂O4(g)…

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Q: Select all of the following reactions that would be expected to provide a negative change in…

A: The answer is given below

Q: positive entropy change.

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

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Q: Which of the following reactions will result in a decrease in entropy?

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Q: When heated, CaCO₃ decomposes into CaO and CO₂ according to the following equation: CaCO₃(s) ⇌…

A: The objective of this question is to calculate the temperature required to achieve a specified…

Q: Using the entropy values in the table below, what is the standard change in entropy, AS, for the…

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Q: One of the reactions that destroys ozone in the upper atmosphere is NO(g) + 03 (9) NO2 (9) + O2 (9)…

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Q: Consider the following reaction at 25 °C: 5 SO₃(g) + 2 NH₃(g) → 2 NO(g) + 5 SO₂(g) + 3 H₂O(g) If ∆H°…

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Q: SICI4 (g) + 2 H,O(e) → SiO2 (s) + 4 HCI(g) C. Standard entropy for some substance given below.…

A: Since,  ∆G = ∆H - T∆S  Reaction is entropy favoured when ∆S is positive because that will help in…

Q: Determine whether the change in entropy increases or decrease. 1. Sublimation of dry ice: CO2…

A: Entropy is a state function that indicates the degree of randomness of a system. Entropy of a system…

Q: What is the entropy change when 1.55 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

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Q: Which of the following processes shows a decrease Select one: O a. 2 CO(g) + 02(g) → 2 CO2(g) O b.…

A: 2CO(g)+O2(g) ------->  2CO2(g) This process will show a decrease in entropy. Moles of reactant…

Q: What is the entropy change when 2.30 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Answer: Entropy is the measure of randomness of the system. In more possible states system can…

Q: Brz(g) — 2 Br(в) Standard entropy for some substance given below. Compound S', J/K · mol Br2 (g)…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: MeO. OMe 1. NaOMe, MeOH 2. H₂O

A: The base-catalyzed self-condensation of carboxylic acid derivatives is a common reaction in organic…

Q: The change in entropy, Δ?∘rxnΔ, is related to the the change in the number of moles of gas…

A: As we know, entropy is a measure of randomness, more the randomness in the system, more is the…

Q: SUBSTANCE ENTHALPY ENTROPY Ca3(G) 112 KJ mol 153.37 J/mol K CI7(G) 203.12 KJ mol 213.80 J/mol K…

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