Explain the difference between the spontaneity of a reaction and the speed at which the reaction occurs? Can a catalyst make a nonspontaneous reaction spontaneous?

Q: A spontaneous reaction always involves an increase in

A: A spontaneous reaction is that reaction which can by it self without external source.

Q: What is the advantage of calculating free energy changesrather than entropy changes to determine…

A: The entropy change of the system depends upon the randomness. As the randomness of the system…

Q: Which of these processes are spontaneous? (a) Water evaporates from a puddle. (b) A lion chases an…

A: The processes that are spontaneous has to be identified.

Q: Here is the reaction of carbon monoxide and hydrogen to form gaseous methanol at 298 K. (a)…

A: (a) ∆S° = -219.2 J/K (b) Sign of ∆S° = -ve (c) ∆H° = -90.5 kJ (d) ∆G° = -ve ( spontaneous reaction )

Q: Consider the reaction: NH4Cl(aq) → NH3(g) + HCl(aq) Using standard thermodynamic data at 298 K,…

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Q: The reaction A(g)B(g) is spontaneous under standard conditions. Which of the following statements…

A: Given that the reaction   A (g) → B (g)  is a spontaneous reactionunder standard conditions. ⇒ ∆GA→B…

Q: Give example of real-life activity or reactions that shows: -entropy -spontaneous process -non…

A: Entropy :- Is the property f the system which measure the degree of randomness. Entropy increases…

Q: Consider the following reaction at 298 K. C(graphite) + 2 Cl,(g) CCI,(1) AH° = -139 kJ Calculate the…

A: Given reaction is :  C (graphite) + 2Cl2 (g) ----------> CCl4 (l) , ΔH0 = -139 KJ   Then,…

Q: istinguish between spontaneous and reversible process

A: There are certain processes which helps to study about the reaction completion, whether the reaction…

Q: For a given reaction, the A H° = 30.91 kJ/mol and A S° = 93.23 JK -'mol -'. At what teperature will…

A: Given data  Enthalpy  ΔH  = 30.91 kJ / mol Entrophy ΔS = 93.23 JK-1mol-1

Q: TRUE OR FALSE Processes that are spontaneous in one direction are also spontaneous in other…

A: In this question, we will see that this Statement is true or false. You can see details explanation…

Q: The decomposition of hydrogen peroxide, H2O2, to gaseous O2 and water is a spontaneous process, yet…

A: The decomposition of hydrogen peroxide, H2O2, to gaseous O2 and water is a spontaneous process, yet…

Q: Why are spontaneous and non-spontaneous reactions often coupled?

A: Spontaneous reaction: the reaction which take place on its own without any initiation are…

Q: For a chemical reaction that is spontaneous in the reverse direction, it is found that ASsys > 0.…

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Q: SO3 + H2O -> H2SO4 Is this chemical reaction spontaneous or non- spontaneous? Fast or slow?

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: Spontaneous reactions are the reactions that  occur on its own, without the use of any external…

A:

Q: + I HO + a. Favored by thermodynamics and kinetics b. Disavored by thermodynamics and kinetics…

A: Given pka of H20 = 15.7 pka of HI = -10 I- is more stable  than OH-  and  SN2 REACTION  NOT…

Q: Under what conditions does an increase in temperature turn a nonspontaneous process into a…

A: For a spontaneous reaction, ∆G (change in Gibbs free energy) must be negative.

Q: Describe how ΔH-T ΔS functions as a criterion of a spontaneous reaction.

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Q: A certain constant-pressure reaction is barely nonspontaneousat 45 °C. The entropy change for the…

A: Given: Temperature (T)=45oC=45+273K=318K Entropy change= 72J/K

Q: Define thermodynamically the entropy of a system

A: The second law of thermodynamics helps us to determine the direction in which energy can be…

Q: A spontaneous reaction does not require external stimuli. O True O False

A: A spontaneous reaction doesn't requires any stimulus. They are also known as natural processes…

Q: Which statement is true? O The spontaneity of a reaction is not necessarily related to the speed of…

A: A spontaneous reaction can be defined as the reaction which favours the product formation under the…

Q: Consider the reaction: A+2B --> C S° (A) = 107.57 J/molK S° (B) = 208.88 J/molK S° (C) = 191.70…

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Q: Consider this reaction: CH3COOH(I) > CH3OH(g) + CO(g) Calculate the minimum temperature at which…

A: To check spontaneity of a reaction , we check sign of ∆G of reaction.  As , a reaction is spontenous…

Q: Explain the difference between the spontaneity of a reaction (which depends on thermodynamics) and…

A: Spontaneity refers to the directionality of a process —that is, whether or not it has a tendency to…

Q: What are the AHrxn and ASrxn values that indicate a spontaneous reaction at all temperatures? O…

A:

Q: 17. Classify the following processes as spontaneous or nonspontaneõus. Explain your answers in terms…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Consider the reaction represented below, which is spontaneous at 298 K.  SO2(g) + 2 NH3(g) →…

A: From the chemical equation, it is cleared that the entropy change for the reaction is negative, and…

Q: The following reaction has these standard thermodynamic parameters: AHPrxn = -36.1 kJ/mol and…

A: Given data : ∆H0= -36.1KJmol-1 ∆Srex= -69.8Jmol-1K-1

Q: A non spontaneous reaction does not require external stimuli. O True O False

A: Spontaneous process is defined as the process which occur without any external stimuli and occur in…

Q: All spontaneous processes are characterized by an increase in the total entropy of the universe and…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…

Q: enumerate at least three examples each for a spontaneous reaction and a nonspontaneous reaction

A: A spontaneous reaction is a reaction which occurs without the help of an external force or energy.…

Q: Calculate the standard molar entropy change at 25 °C for the reaction CO(g) + H2O(g) --> CO2(g) +…

A:

Q: What is the difference between a spontaneous reaction and a non spontaneous reaction?

A: We have to tell the difference between a spontaneous reaction and a non spontaneous reaction

Q: Decomposition of CaCO3 has a AH° = 178.3 kJ/mol and AS° = 159 J/molK. At what temperature does this…

A: We need to find the temperature for which reaction becomes spontaneous.

Q: A reaction has A Hon -65.1 kJ/mol %3D rxn A Sexn = - 47.8 J/mol K Inder what range of temperatures…

A: Given: ∆Hrxn0=-65.1KJmol=-65100 Jmol∆Srxn0=-47.8.Jmol K

Q: Explain how a reaction that is not spontaneous may be driven forward by coupling it to a spontaneous…

A: A reaction that is capable of carrying a reaction in forward direction without any use of external…

Q: An endothermic reaction that has a negative entropy change would be described as what?  Spontaneous…

A: Endothermic process is any process with an increase in enthalpy H (or internal energy U) of the…

Q: The law of thermodynamics states that every spontaneous process moves towards greater entropy.…

A: There are certain laws in thermodynamics to characterize systems in thermodynamic equilibrium  Thise…

Q: Which statement is true?a. A spontaneous reaction is always a fast reaction.b. A spontaneous…

A: Spontaneous reactions are those reactions which occurs by themselves without the external driving…

Q: Under what temperature conditions (low T, high T, all T, nonspontaneous at all T) would this…

A: The question is based on the concept of spontaneity of the reaction. we have to identify under which…

Q: 5. What temperature does the following reaction become spontaneous? Ni(CO)4 (I) → Ni (s) + 4CO(g) AH…

A: We have the reaction of the decomposition of nickel tetracarbonyl. We have  to calculate ∆H of the…

Q: Substance KCIO3(s) KC(s) 02(g) S° J/mol•K 143.1 82.6 205.0 AH° f (kJ/mol) -396.7 -436.7

A: The spontaneity of the reaction has to be given, The balanced chemical equation is, 2KClO3→2KCl+3O2

Q: TRUE OR FALSE Entropy is a measure of disorder in a physical or chemical system

A: Entropy is a thermodynamics property. And measure randomness or disorder of the system

Q: If either of the reactions is nonspontaneous but can become spontaneous, at what temperature might…

A: The relation between free energy and enthalpy is shown below: ∆G = ∆H -T∆S where; ∆G = change in…