If a certain process has ΔS univ > 0 at 25°C, the process may be described as   A. Spontaneous.   B. Endothermic.   C. Moving rapidly toward equilibrium.   D. Exothermic.

Q: 12. A glass of ice water is placed on a table on a hot afternoon. Condensation forms on the outside…

A: When an ice cold glass is come out and kept it on the surrounding, on the surface of the glass water…

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

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Q: 1.)     Consider the endothermic reaction 4HCl (aq) + MnO2 (s) Cl2 (g) + 2 H2O (l) + MnCl2 (aq),…

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Q: Use the standard free energy data to determine the free energy change for the following reactions,…

A: Answer:- This question is answered by using the simple concept of calculation of Gibbs free energy…

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 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: Define entropy and state the second law of thermodynamics?

A: Entropy is a thermodynamic property which shows the inaccessibility of a system's thermal energy. It…

Q: You are studying the decomposition of CaCO3(s). CaCO:(s) → Cao(s) + CO2(g) ) At what temperature…

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

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Q: Which one of the following processes produces a decrease in the entropy of the  system?  A. boiling…

A: Entropy of the process increases when- The randomness of system increases and the system is…

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

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Q: Consider the combustion of propane gas:C3H8(g) + 5 O2(g)---------->3 CO2(g) + 4 H2O(g) ΔHrxn =…

A: The reaction of combustion of propane

Q: A chemical reaction is always spontaneous if it is accompanied by Oa. endothermic and increasing…

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Q: What molecular property does entropy reflect?

A: ENTROPY Entropy is the measure of disorderness or randomness of the system. It is a thermodynamic…

Q: Q8. Melting ice represents a very interesting thermodynamic system. Which of the following is an…

A: In this question, we will Select the accurate conclusion which arising from the fact that ice melts…

Q: A student calculated that for a given reaction, ∆S = 22J/K and ∆H =6028 Joules. At which temperature…

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Q: What would cause entropy to decrease in a reaction? A. The products gaining more mobility than the…

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

A: Since you have posted more than one question, we will solve only first question for you. If you want…

Q: Calculate the free energy change for this reaction at 25 °C. Is the reaction spontaneous? (Assume…

A: Given information, C3H8( g) + 5 O2( g)-------->3 CO2( g) + 4 H2O( g)ΔH °rxn = -2217…

Q: At SATP, which reaction below is spontaneous? A. CO2(s)→CO2(l) B. CO2(s)→CO2(g) C. CO2(g)→CO2(l) D.…

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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…

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Q: Explain the first law of thermodynamics and examples

A: Frist law of thermodynamics ∆U = Q+w

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

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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: Explain why the entropy is higher for a system with 5 particles in 3 energy states than for a system…

A: Basically,entropy is a unit of randomness. More the randomness in the system,more will be its…

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

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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: Order the following in order of INCREASING standard molar entropy. Type your answer in the form of a…

A: We have to arrange given compounds  in order of INCREASING standard molar entropy

Q: . Consider Ethanol (C2H5OH) (a) Write the balanced equation for the combustion of 1 mole of ethanol…

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Q: Briefly describe the Third Law of Thermodynamics.   b) Consider the reaction 2X(g)+ O2(g)→3Y(g)…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: What statement describes coupling reactions?     Two nonspontaneous reactions are coupled together…

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Q: NH3(g)   +  HCl(g)   ---->   NH4Cl(s) ΔHfo(kJ/mol):  -46.2          -92.3                   -314.4…

A: The reaction given is  NH3(g)   +  HCl(g)   ------->   NH4Cl(s)

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Q: which of the following is not spontaneous at room temperature? a) H2O (g) --> H2O (l) b) H2O(s) -->…

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

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Q: :The entropy of a reversible process is .A Sf = Si .B Sf>Si .C Sf < Si

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

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Q: Use the standard free energy data to determine the free energy change for the following reactions,…

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Q: Spontaneous chemical reactions proceed until they hit equilibrium.  Once the reaction hits…

A: Spontaneous chemical reactions are reactions which takes place without the addition of external…

Q: What is a spontaneous process?  A. is reversible.  B. Is irreversible  C. may be reversible or…

A: Entropy is a measure of randomness  ∆S = Ssystem + Ssurrounding = ( for reversible process) ∆S =…

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

A: