Even if ∆G is negative, the reaction may not occur

Q: a) H2(g)→ 2H(g) b) N2 (g. 1 atm) → N, (g, 8 atm) C) 2SO3(g) → 2SO,(g) + O2(g) d) C (Diamond) → C…

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Q: Which of the following samples of substances is likely to have the largest entropy? 1 mol KCI(aq) 1…

A: The gas phase has highest entropy followed by liquid. Solids have lowest entropy.

Q: Question 18 of 25 Which law states that the entropy of a perfect crystalline substance is zero at…

A: Answer  The entropy of perfect crystalline substance is zero at the…

Q: Classify the possible combinations of signs for a reaction's Δ?ΔH and Δ?ΔS values by the resulting…

A: The Gibb’s free energy change is expressed as:

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: Predict whether the standard entropy change for the following reactions at 25 °C will be positive,…

A: Ans  Entropy: It is the measurement of the randomness for the reaction or molecules For a chemical…

Q: Without doing a calculation predict whether the entropy change will be positive or negative when…

A: Entropy is the degree of disorderness or randomness. More closely packed the molecules, lesser will…

Q: Which reaction is most likely to have a decrease in entropy? O 3 NO2(g) + H2O(1) → 2 HNO3(1) + NO(g)…

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Q: Which of the following changes will always be true for a spontaneous reaction?  +ΔG  –ΔG  +ΔS…

A: The spontaneous reaction means the reaction which occur without intervenation at given set of…

Q: 7) a) Is entropy increasing or decreasing in the following reactions? Explain CH: (g) + H20 (g) → co…

A: Given information:

Q: When exposed to oxygen, iron forms iron oxide., 4Fe(s) + 3O₂(g) → 2Fe₂O₃(s). What, if anything can…

A: 4Fe(s) + 3O₂(g) → 2Fe₂O₃(s) [ entropy will…

Q: The standard reaction free energy AG =-910. kJ for this reaction: 6C(s) + 6 H2(g) +…

A: The given reaction is as follows: 6C(s) + 6H2(g) + 3O2(g) → C6H12O6(s)                      ∆G°=-910…

Q: Predict the sign of the entropy change for the following reactions or processes Evaporation…

A: Using concept of entropy Solid /<liquid<gas  Entropy change passively.

Q: Refer to Appendix B in your textbook entitled Standard Thermodynamic Values for Selected Substances…

A: Given: 2SO2(g) + O2(g) -----> 2SO3(g) From standard Table:  ∆f H°(SO2(g))     = -296.8 kJ/mol ∆f…

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: Consider the following reaction: N2(g) + 3H2(g) ⇄ 2NH3(g) A. When would this reaction be…

A: Reaction :                                   N2(g) + 3H2(g) ⇄ 2NH3(g)…

Q: reaction has the following thermochemical values at 273.15 K: ΔH = -184.8 kJ mol-1 ΔS = -166.6 J…

A: Given,  ΔH = -184.8 kJ mol-1 ΔS = -166.6 J mol-1K-1 Temperature = 273.15 K

Q: Calculate the standard free-energy change at 25°C for the Haber synthesis of ammonia using the given…

A: Standard free energy change is calculated using formula  ∆G° = ∆H° - T∆S°    Reaction is spontenous…

Q: A chemical reaction is most likely to be spontaneous if it is accompanied by A. increasing energy B.…

A: Spontaneous reaction/process - The reaction which occurs on its own without the requirement of any…

Q: Calculate the free energy change for the following reaction at 25°C. Is the reaction spontaneous at…

A: Given: ΔHrxn = −1269.8 kJ ΔSrxn=−364.6 J/K T = 25°C = 298 K

Q: Describe and explain entropy of this situation 1. Philippines before and after 10 years 2. Japan…

A: A question based on chemical thermodynamics that is to be accomplished.

Q: entropy change for the reaction 2 SO2(g) + O2(g) → 2 SO3(g)

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Q: Which reaction is most likely to have a decrease in entropy? O NaCl(s) → Na*(aq) + Cl(aq) O 2 NH3(g)…

A: When the reaction shows the positive entropy change then the reaction is spontaneous.

Q: For each of the following reactions, indicate whether you would expect the entropy of the system to…

A: As the number of gaseous moles increases on the product side the entropy is said to be increasing…

Q: Calculate the entropy change for the following reactions, using the tabulated standard molar…

A: Nitrogen oxide reacts with oxygen to form nitrogen dioxide, the equation for the balanced chemical…

Q: Calculate the standard entropy change for the reaction at 25 °C. Standard molar entropy values can…

A: Answer: 30.28 J/K

Q: The standard free energy of formation, AG? , of a substance is the free energy change for the…

A:

Q: You are working in a lab and observing a reaction. If a reaction vessel is cold to touch and the…

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

Q: The standard enthalpy change and standard entropy change for the reaction are: A,HP = -666.2 kJ…

A: The spontaneous nature of the reaction is determined by calculating the change of free energy of the…

Q: Calculate the standard entropy change for the following reactions: Given S[So2(g)]=248.2j/k.mol,…

A: Given reaction and information,       Formation of SO3 from SO2 and O2.       Entropy value for SO2…

Q: Use the Thermodynamic Quantities Table in your text (Appendix C) to calculate the equilibrium…

A: Given:  The reaction equation is given as -                                                  N2 (g)…

Q: Which of the following processes are spontaneous: the reaction of hydrogen gas with oxygen gas to…

A: A reaction is considered as spontaneous when it releases free energy and it favors the formation of…

Q: 15. The entropy will usually increase when I. a molecule is broken into two or more smaller…

A: Entropy = Entropy is the measure of spontaneous changes that occur in the system. It is referred to…

Q: Without doing a calculation predict whether the entropy change will be positive or negative when…

A: Entropy is a thermodynamic quantity that gives us the measure of randomness or measure of disorder…

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: 4. At what temperature the reaction becomes spontaneous? 5. The vant Hoff's equation works if…

A: The Vant't Hoff equation gives us the relation between standard Gibbs free energy change ∆G and…

Q: Under standard conditions, the products of a reaction have, overall, greater entropy than the…

A: Given that ∆S°products is greater than ∆S°reactants .

Q: For each of the following reactions, indicate whether you would expect the entropy of the system to…

A: Entropy gives us the sense of how random the molecules in the system are. Higher entropy means…

Q: Entropy of a system would decrease when a substance goes through 1. A melting evaporation C boiling…

A: The correct option is (d) i.e. condensation. Melting leads to conversion of solid into liquid due to…

Q: The total entropy of a pure, perfect crystal at Absolute Zero is zero.  This represents __. A) the…

A: 1.  According to third law of thermodynamics, the entropy of any pure crystalline substance…

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

A: The second law of thermodynamics helps us to predict whether the reaction is fisible or not .…

Q: Predict how the entropy of the substance is affected in each of the processes. N, (1, 75 K) → N,(g,…

A: Entropy: It is the thermodynamic property which measure the disorderness or randomness. Higher the…

Q: Which of the following processes shows an increase in entropy of the system? 2NO₂(g) → 2NO(g) +…

A:

Q: Which of the following processes are spontaneous?  Spreading a fragrance of perfume through a room.…

A: Spontaneous reaction: The process which does not need any external energy for the initiation of the…

Q: From the following ∆H and ∆S values, predict whether the reaction would be spontaneous. If not, at…

A: Spontaneity of reaction is predict as following Reaction will be spontaneous if ∆G<0 Reaction…

Q: At what temperature will a reaction become spontaneous given: Entropy change = 170 J/K enthalpy…

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Q: Calculate the standard entropy change for the reaction at 25 °C. Standard molar entropy values can…

A:

Q: Which expression defines the change in free energy? a. ΔΗ + ΤAG c. ΔΗ-TAS b. ΔΗ+TAS d. ΔS-ΤΔΗ

A: We have to predict correct statement for change in free energy.

Q: Predict the conditions (high temperature, low temperature, all temperatures, or no temperatures)…

A: The sponatneity of the reaction is measured in terms of the gibbs free energy. The gibbs free energy…

Q: Calculate ΔS° for each of the following reactions. Explain the sign of ΔS° based on the molecular…

A: Entropy is defined as the degree of randomness or disorderliness of the System.   if the molecules…

Q: Which pure substance under standard conditions would have the highest entropy?   O2   HCl   CH3OH…

A: Standard conditions are usually defined as 298 K (25 degrees Celsius) and 1 atm of pressure. Note…