Which of these statements is true? (a) All spontaneous reactionshave a negative enthalpy change (b) All spontaneousreactions have a positive entropy change (c) All spontaneousreactions have a positive free-energy change (d) All spontaneousreactions have a negative free-energy change (e) Allspontaneous reactions have a negative entropy change

Q: What is the type of entropy change for 2 H2 (g) + O2 (g) —> 2 H2O (l)? Provide Description.

A: 2 H2 (g) + O2 (g) —> 2 H2O (l) entropy change:

Q: The following acid-base reaction occurs spontaneously in the gas phase at 25.0 °C: NH₃(g) + HCl(g) ⇌…

A: Consider the given gas phase reaction as; NH3 g + HCl g ⇌ NH4Cl s Entropy change ∆S = negative (-ve)…

Q: Since the entropy of the universe increases for spontaneousprocesses, does it mean that the entropy…

A: SOLUTION: Step 1: According to the second law of thermodynamics, the entropy of the universe…

Q: Use the equation for free energy change and the equation that links standard free energy change to a…

A:

Q: Determine the sign of entropy change (+∆S or -∆S): a. CaCO3(s) → CaO(s) + CO2(g) b.  N2(g) + 3H2(g)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is a spontaneous process?

A: Spontaneous process is a irreversible process

Q: If a chemical reaction has a negative AH and a positive AS, then a. it will be spontaneous at low…

A:

Q: At high temperatures, ammonia decomposes to N2 and H2:2NH3 (g) ----> N2 (g) + 3H2 (g) ΔH for the…

A: Given information, ΔH for the reaction is positive and ΔS are positive. The given decomposition…

Q: Classify the following processes as spontaneous or non spontaneous

A: Process are categorised as spontaneous if they are naturally occurring without any external force

Q: Cite at least 3 examples of non-spontaneous phenomena.

A: This question belong to thermodynamics concept of spontaneity. We know that, ∆G = ∆H-T∆S…

Q: Indicate whether each statement is true or false. (a) Thesecond law of thermodynamics says that…

A: (a) The statement is false, because entropy created is distributed to the surroundings. Entropy…

Q: Which of the following has the greatest entropy- (a) H2O (g) at 100 °C (b) H2O (€) at 100 °C (c) H2O…

A: Entropy (∆S°) is generally the randomness or disorder present in the molecule. So, the amount of ∆S°…

Q: Polymer -->  Product and you determine that at a given temperature the reaction is spontaneous and…

A:

Q: For a spontaneous exothermic process, which of the following must be true

A: The given question tells that the reaction is spontaneous and exothermic

Q: c) Caco, (s, calcite) + 2 Ha (g) > Cada (s) • CO: () + H:0 (1) irst, predict the sign of AS the sign…

A: Given: The chemical reaction is, CaOs+2HClg→CaCl2s+CO2g+H2Ol......(1) The standard molar entropy of…

Q: Consider the vaporization of liquid water to steam at a pressure of 1 atm.In what temperature range…

A: vapourization in which the process in which the liquid to vapor phase. an endothermic reaction is a…

Q: Which of the following statements is true? O All spontaneous reactions have a negative enthalpy…

A: Spontaneous process: It is process that happens it own and continues in its own way and do not…

Q: Whatto do: Determine whether the entropy change is greateror lesserthan zero for each of the…

A: Answer: Entropy is actually tells us about, in how many different states a system can be. More…

Q: Which of the following is correct? A. A process that leads to a negative ΔSuniverse is spontaneous…

A:

Q: What can be said about an exothermic reaction with a negative entropy change? • View Available…

A: We know that a process will be spontaneous if ∆G is negative.  Also, ∆G = ∆H - T∆S  where, ∆G =…

Q: Isomers are molecules that have the same chemical formulabut different arrangements of atoms, as…

A: a.

Q: Which one of the following statements is false O AG7 of elements in their standard states is zero O…

A: A spontaneous  reaction always have negative Delta G for reaction.

Q: perature, at what temperature does the reaction change from nonspontaneous to spontaneous in the…

A: Temperature (T)= 55400/94.1 = 588.7K

Q: If the AH = 287 kJ/mol and AS = 57 J/K mol for a nonspontaneous reaction, at what temperature does…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: .Is there a connection between the free-energy change for a reaction and its equilibrium constant?…

A: The relation between the free-energy change for a reaction and its equilibrium constant has to be…

Q: According to Le Châtelier's principle and the dependence of free energy on reactant and product…

A: which statement is true

Q: (a) What are the signs of ΔS and ΔH for the process depictedhere? (b) If energy can flow in and out…

A: Entropy(S) is a thermodynamic property which denotes the degree of disorder or randomness of the…

Q: Consider a reaction that has a positive deltaH and a positive deltaS. whic is true? This reaction…

A: The spontaneity of a reaction depends upon change in Gibb's free energy (∆G) .If ∆G is negative then…

Q: Determine the sign of entropy change (+∆S or -∆S): a. CH3OH(l) → CH3OH(g) b.  2KClO3(s) → 2KCl(s) +…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: You are observing a reaction and discover that the reaction vessel is warm to the touch.  The…

A: Interpretation: We have to tell whether the reaction is spontaneous or not.

Q: Is the formation of acid rain spontaneous or non-spontaneous at 50°C?

A:

Q: The process of iron being oxidized to make iron(III) oxide(rust) is spontaneous. Which of these…

A: The process of rusting of iron is an important phenomenon and it indicates an oxidation reaction. It…

Q: Which of the following involve an increase in the entropy of the system? Briefly explain how…

A: The process that involves an increase in the entropy of the system has to be identified .

Q: A sample of carbon is burned in a calorimeter. If the calorimeter absorbs 81 J/K during the reaction…

A: Solving only first question in accordance with guidelines. You can repost remaining questions.

Q: Which of the following processes are spontaneous and which are nonspontaneous: (a) the ripening of a…

A: Spontaneous process The process that can take place without the assistance of any external factor is…

Q: Which of the following statements is true? O a. Any reaction that is spontaneous cannot be…

A: In the given question we have to choose the correct statement from the following given statements.…

Q: When AH is negative and AS is positive, the reaction is: ONever spontaneous OSpontaneous at low…

A: Detail solution is given below

Q: How does the entropy of the surroundings change duringan exothermic reaction? An endothermic…

A: Entropy of surrounding will increase during an exothermic reaction because heat is absorbed by…

Q: Propanol 1C3H7OH2 melts at -126.5 °C and boils at 97.4 °C. Sketch how the entropy changes as…

A: Entropy is the measure of the randomness of the system. The entropy of the system increases for the…

Q: Which of the following is correct? A. A process that leads to a negative ΔSuniverse is spontaneous…

A: To identify: The correct statement about the spontaneous process.

Q: Explain why water spontaneously freezes to form ice below 0 °C even though the entropy of the water…

A: Entropy is the randomness or disorder. As the disorder increases the entropy increases, while the…

Q: The accompanying diagram shows how entropy varieswith temperature for a substance that is a gas at…

A: Entropy is the measure of the randomness. More the randomness , more the entropy. Thus , entropy of…

Q: Determine if liquid water will spontaneously freeze at -10.00°C? Is it spontaneous at +10.00°C? What…

A: The process of conversion of ice into water is known as melting. The temperature at which this…

Q: For each of the following statements, indicate whether it is true or false. Why ? a) A spontaneous…

A: a) A spontaneous reaction always releases heat. - False     All of the Spontaneous reactions  are…

Q: A spontaneous process at constant temperature and volume is accompanied by a decrease in the…

A:

Q: TRUE OR FALSE The spontaneous process proceeds on its own without any outside assistance.

A: The given statement is, The spontaneous process proceeds on its own without any outside assistance…

Q: Determine the sign of entropy change (+∆S or -∆S) a. 2KClO3(s) → 2KCl(s) + 3O2(g) b. N2O4(g) →…

A: The entropy (S) is determined on the basis of the phase transition of the reacting species. The…

Q: Water freezes spontaneously at -5°C and 1atm. Describe how a spontaneous process can result in a…

A: Entropy usually refers to the randomness of a system. A reaction is said to be spontaneous if it…

Q: Which one of the following statements is false O AG; of elements in their standard states is zero O…

A: Option a: ∆G° of element in their standard states is zero because standard standard is the most…