When heated, CaCO₃ decomposes into CaO and CO₂ according to the following equation: CaCO₃(s) ⇌ CaO(s) + CO₂(g) This is an endothermic reaction in which ∆H° = 178.3 kJ/mol and in which entropy increases, ∆S° = 159 J/mol･K. To what temperature (in °C) must CaCO₃ be heated in a closed container in order to produce CO₂ at an equilibrium pressure of 0.900 atm? (Assume ∆H° and ∆S° do not change appreciabl

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: For a reaction where ∆H° = +573 kJ/mol and ∆S° = +1.64 kJ/mol･K, at what temperature, in K, does…

A: For a reaction to be spontaneous the value of ∆G° must be negative.

Q: For the reaction A + B = C, with the equilibrium constant is K25 = 20 at 25 C, and it is K40= 10 at…

A: According to the Clausius Clapeyron equation ln(KT2 / KT1) = -(∆H/R) X ( 1/T2 - 1/T1 )  where KT2 =…

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: 1. Predict whether the entropy change for each of the following reactions will have a positive value…

A: Entropy is a measure of randomness (or) disorderness, represented by ∆S It is a state function,…

Q: Consider the reaction, HQ ⇌ H⁺(aq) + Q⁻(aq). At 298 K, the ∆S°rxn = -81.0 J/mol･K and the ∆G°rxn of…

A: The ∆H°rxn of the given reaction can bu calculated using following thermodynamics relation: ∆H°rxn =…

Q: Will entropy increase or decrease in the following reactions? Explain? N2(g) + 2O2(g) ------->…

A:

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

A: Given data :

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

A: Answer:Given data:

Q: oxide decomposes based on the reaction:                            2 Ag2O (s) à 4 Ag (s)  + O2 (g)…

A:

Q: Which of the following situations would be least likely to increase the entropy of a system?…

A: The objective of this question is to find the situation which would be less likely to increase the…

Q: Predict whether the following changes represent an increase or decrease in the entropy of the…

A: A) Freezing leads to reduction in randomness of particles hence entropy decrease. B) 1 mole of…

Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH₃(g) → 3 Ni(s) + N₂(g) + 3 H₂O(g) If ∆G°…

A: The amount of energy related to a chemical reaction which can be used to extract some useful work is…

Q: Cyclopropane and propylene are isomers that both havethe formula C3H6. Based on the molecular…

A:

Q: For ammonia, the enthalpy of fusion is 4.65 kJ/mol and the entropy of fusion is 38.9 J/Kmol.…

A: Given that For ammonia, the enthalpy of fusion(∆H°) is 4.65 kJ/mol and the entropy of fusion(∆S°) is…

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: 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: 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 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: positive entropy change.

A:

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: A particular reaction has a ΔHo value of -150 kJ and ΔSo of -393 J/mol K at 298 K. Assuming that ΔHo…

A: Enthalpy change of a reaction, ∆H° is the energy difference between energy of products and…

Q: The ∆H(dissolve) for oxygen solubility in water at 310.0 K is -14.4 kJ/mol and the ∆G(dissolve) for…

A: Gibbs free energy change, temperature, entropy change and enthalpy change are related with each…

Q: A certain liquid substance boils at 53.3 °C (at 1 atm) and has a standard enthalpy of vaporization…

A: The boiling point of the given substance is = 53.3oC = 53.3oC+273.15 = 326.45 K The standard…

Q: Example: What is the temperature range in which the following reaction is spontaneous? N₂+ 3H2 →…

A: The change in entropy (ΔS) for a reaction can be calculated using the formula:ΔS=ΣS−ΣSwhere ΣS is…

Q: Determine the sign of ΔSsys for the following chemical reactions without doing any calculations. a)…

A: Note: As per the guidelines solution of first 3 parts has been made. For the expert solution of…

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 when 1.55 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

A:

Q: Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH (g) →3 Ni(s) + N,(g) + 3 H,O(g) K If AH° =…

A:

Q: Which of the following processes results in the largest decrease in Entropy? The heat of fusion of…

A: Entropy an be defined as the thermal energy per unit temperature that is unavailable for doing a…