5. Given: H2O(l) → H2O(g) ΔH° = 40.7 kJ at 373K What is the entropy change in the system (ΔS) when one mole of water vaporizes at 100°C and a pressure of one atmosphere? A) 407 J/K B) −407 J/K C) 109 J/K D) −109 J/K

Q: For the reaction shown below, determine the value of ΔSsurr at 345 K.Express your answer to 3…

A: The objective of the question is to calculate the change in entropy of the surroundings (ΔSsurr) for…

Q: Below what temperature does the following reaction become spontaneous? FeO(s) + CO(g) → CO2(g) +…

A:

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: 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: 3.) Consider the reaction below. Reaction: 2 ICI (g) 1: (g) Cl: (g) AH°f 17.78 (kJ/mole) S° 247.551…

A:

Q: The enthalpy for a certain process is 121.9 kJ/mol and the entropy for the process is 454.8 J/K.  At…

A: We are given that, ∆H = 121.9 KJ/mol = 121.9 × 10^3 J/mol  ∆S = 454.8 J/K

Q: Calculate the standard entropy change for the formation of one mole methanol at 25 °C.    2 CO2(g)…

A:

Q: A chemical reaction has a enthalpy change of 171.8kJ and change in entropy of 788.3 J/K. what is the…

A: For spontaneous reaction ∆G<0 , For non-spontaneous reaction ∆G>0 Where ∆G is change in Gibbs…

Q: The Second Law of Thermodynamics states, the entropy of the universe is always increasing, ∆Suni >…

A: A question about second law of thermodynamics, which is to be accomplished.

Q: The Second Law of Thermodynamics states, the entropy of the universe is always increasing, ∆Suni >…

A: Spontaneous Reactions: The reactions that occur spontaneously i.e without any addition of external…

Q: What is the entropy when 1.39 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A:

Q: Calculate the entropy of the equation below: CaCO3(s) → CO2(g) + Cao (s) CaCO3(s) = 92.9 J/K.mol…

A: The balanced chemical equation is: CaCO3(s)  ---->CaO(s) + CO2(g)

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: How ΔGo is related to ΔHo and ΔSo . Illustrate by Equation ?

A: Given terms,    ΔGo , ΔHo and ΔSo  G - free energy H - enthalpy S - entropy

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: Is the change from liquid to gaseous H2O favored or unfavored by ΔH? By ΔS?

A: Conversion of water molecules into vapor state state at its boiling point of water is called…

Q: 46. Which of the following involves a decrease in entropy? A) the sublimation of solid CO2 into CO2…

A: The correct answer about entropy is given below

Q: When heated, CaCO, decomposes into CaO and CO₂ according to the following equation: CaCO,(s)=CaO(s)+…

A: Given,CaCO3 (aq) + CO2 (g)

Q: For the reaction below AH = +92.2 kJ, and AS = +198.7 J/K. Estimate the temperature at which this…

A: To find the temperature.

Q: In freezing a mole of liquid water at the freezing point; the enthalpy of fusion is 6.0lkJ/mol…

A: The enthalpy of fusion is 6.01 KJ/mol To determine : entropy of system , surrounding and universe

Q: 2.1.1 Calculate ∆rGo , using only Gibbs energy values. 2.1.2 Calculate the equilibrium constant, K,…

A: Given that -  1/4 S8 (s) + 3O2(g) → 2SO3 (g)    (2.1.1) -    Then, Gibbs free energy is -  ∆G°rxn =…

Q: A reaction has ΔH∘rxn= -139 kJ and ΔS∘rxn=303 J/K .     Part A At what temperature is the change in…

A: GIven: ΔH∘rxn= -139 kJ=-13900 J ΔS∘rxn=303 J/K . Now, ∆Ssurrounding = ∆Hreaction / T

Q: Consider the following equation: 2 CH3OH (ℓ) + 3 O2 (g) à  4 H2O (ℓ) + 2 CO2 (g)         ∆H =…

A: The heat of reaction is a thermodynamic unit of measurement. It is the amount of energy either…

Q: An example of a reaction where ∆G = 0 is   C(graphite)→C(diamond)   any synthesis reaction…

A: We know, The value of  ∆G = 0 when the reaction is at an equilibrium.

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

A:

Q: For which set of conditions will a reaction not be spontaneous at all temperatures?   A ΔHrxn > 0;…

A: The formula is  ΔG = ΔH - TΔS The reaction is spontaneous if ΔG < 0 The reaction is…

Q: What is the entropy when 1.34 moles of CCl₂F₂ vaporize at 25°C? [∆H(vap) = 17.2 kJ/mol at 25°C]

A:

Q: Item 1 I Review | Constants | Periodic Table Elemental carbon usually exists in one of two forms:…

A:

Q: Consider the synthesis of sulphur trioxide from its elements at 25oC: 1/4 S8 (s) + 3O2(g) → 2SO3 (g)…

A: Given reaction is  1/4 S8 (s) + 3O2(g) → 2SO3 (g) Given thermodynamic data is  Species…

Q: Consider the synthesis of sulphur trioxide from its elements at 25oC: 1/4 S8 (s) + 3O2(g) → 2SO3 (g)…

A: Given chemical reaction is  1/4 S8 (s) + 3O2(g) → 2SO3 (g) Thermodynamic Data given is : Species…

Q: What is the entropy change (in J/K) when 43.3 g of liquid sulfur at its melting temperature of…

A: Answer:Entropy is the measure of system's disorderliness or randomness. In more possible microstates…

Q: Calculate the ∆H and ∆G for the following reactions at 25 degrees Celsius: Al2O3 (s) + 2Fe (s) —>…

A: Delta G is the change in Gibb's free energy and delta H is the change in entropy. Delta G increases…

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°…

A:

Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: ∆Hvap= 40.7 kJ/mol = 40.7 × 1000 J/mol Water boils at 100°C = 373 K For the vapourization of water,…

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

A:

Q: What is ∆Gο at 25° for the reaction: 2 CO (g) + 2 H2 (g) → CO2(g) + CH4(g), given that at 25° ∆Hο =…

A: Recall data, ∆H°=-247.3 KJ mol-1 ∆S°=-256.5 J mol-1K-1= -0.2565 KJ mol-1K-1 ∆G°=?

Q: lculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1. N2…

A: In a chemical reaction, some bonds are formed and some are broken.This results into change in the…

Q: What is the change of entropy in the vaporization of 5 grams of ice cube at 0C to steam at 100 C.…

A: The degree of randomness of the system is called entropy. Specific heat capacity of water(c)=…

Q: Using the data below, the ∆S⁰ is -326.3 J/K in the combustion of hydrogen in the presence of excess…

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Q: The ionization constant for water is 1.14*10-15 at 0 oC and 9.60*10-14 at 60.0 oC. i) Calculate the…

A: A reaction is said to be spontaneous if its Gibbs free energy is negative. We can calculate the…

Q: Which of the following compounds has the highest molar entropy (all are gases): NO, N2O4, NO2, N2?…

A: Entropy is the measure of randomness.

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

A: