Which of the following cases has a decrease in entropy? Vaporization of water. Formation of H20 (g) from its elements. None of these. Combustion of solid carbon graphite in oxygen gas.
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: Which one of the following processes produces a decrease in the entropy of the system? melting solid…
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Q: Which of the following processes shows a decrease in entropy of the system? Select one: O a. 2 CO(g)…
A: Since we know that entropy depends upon the following factors (1) Physical state of the molecules :…
Q: In which of the following processes does the entropy decrease? The dissolving of sodium chloride in…
A: In which of the following process entropy decreases : a) The dissolving of sodium chloride in…
Q: Calculate the change in entropy that occurs in the system when 25.0 g of water condenses from a gas…
A: When water condenses from its vapor state to liquid state, heat ,,is released by the system,. The…
Q: Which of the following is the best example of a positive change in entropy? O A) The mixing of two…
A: Entropy is the degree of randomness or disorder. If randomness increase then entropy will also…
Q: Which of the following involve an increase in the entropy of the system? Briefly explain how a.…
A: Generally, entropy is defined as a measure of randomness or disorder of a system.The greater…
Q: Which one of the following processes produces a decrease in the entropy of the system? A melting…
A: The entropy is basically determination of any system's randomness (uncertainty). In any system, if…
Q: Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3H6O) freezes at…
A: The given mass of acetone = 45.0 g The molar mass of acetone = 58.08 g/mol The moles of acetone are…
Q: Arrange the following sets of systems in order of increasing entropy. Assume one mole of each…
A: Entropy is a measure of randomness of a system. It is denoted by capital letter 'S' and its value…
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: Which of the following exhibits negative entropy change? O An ice cube melts on the table. O A lump…
A: The objective of the question is to find out which one of the following is an example of negative…
Q: What is the enthalpy change when silver chloride form from the ions in an aqueous solution? What is…
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Q: What is an example of a system showing a decrease in entropy a. Helium escaping a balloon b.…
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Q: Calculate the change in entropy that occurs in the system when 45.8 g of diethyl ether (C4H10O)…
A:
Q: What is the change in entropy when 0.600 g of water decomposes to form hydrogen gas and oxygen gas…
A: Given, 2H2O(l) ----> 2H2(g) + O2(g); Delta S° = 326.3 J/K at 298 K
Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…
A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are…
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: Which of the following sets of systems are in order of increasing entropy? AH,(8), HBrO,(8), HBr(g)…
A: ***As you didn't write that which question you want to solve me.. hence I'm solving first question.…
Q: Which of the following reactions results in an increase in the entropy of the system? A) CH₄(g) +…
A: When degree of randomness of products is greater than reactants they result in an increase in…
Q: Which reaction results to a decrease in the entropy of the system? O 4 NH3 (g) + 5 02 (2) → 4 NO (g)…
A: The entropy is the measure of degree of randomness in a molecule.
Q: Which statement is correct? Dissolving table salt (NaCI) in water leads to a decrease in entropy…
A: Correct option is (C)
Q: At 25 oC, which of the following substances has the least molar entropy? A. N 2(g) B. C 6H 6(l) C.…
A: Given, Four substances are given - A. N2 (g) B. C6H6 (l)…
Q: During a certain reversible process, the surroundings undergo an entropy change, ∆Ssurr = -78…
A: As per the thermodynamic concept, the entropy of universe is the sum of entropy of system and…
Q: Why does the entropy of halogens at room temperature increases in the following order I2 <Br < Clz.
A: Entropy: It is the thermodynamic property which measure molecular randomness or disorderness of a…
Q: Which of the following represent an increase in entropy? carbon atoms crystallize and become…
A: The answer of the above question is given in following steps
Q: What is the entropy when a system goes from 4 microstates to 5 microstates? 3.08 x 10-24 O -3.08 x…
A:
Q: Predict which member of each of the following pairs has the greater standard entropy at 25°C25 °C:…
A: Since you have asked multiple question ,we will solve the first three question for you. To get the…
Q: 5. Which of the following substances has the greatest standard molar entropy at 25 °C? a) Na (s) b)…
A:
Q: A. H2O(l)+CO2(g)→H2CO3(aq) B. 2Na3PO4(aq)+3CaCl2(aq)→6NaCl(aq)+Ca3(PO4)2(s) C.…
A: In simple words entropy is measure of randomness or disorder of system. More randomness more is…
Q: Predict which member of each of the following pairs has the greater standard entropy at 25°C: (a)…
A: The given options are : (a). C6H6 (l) or C6H6 (g) (b). CO (g) or CO2 (g) (c). 1 mol N2O4 (g) or 2…
Q: Which of the following represents an increase in entropy? a) freezing of water b) boiling of water…
A: In simple words entropy is measure of randomness or disorder of a system. Entropy of systen…
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: True or false. a. Entropy opposes food oils from dissolving into water. b. Entropy always favors…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…
A: Since you have a question with multiple parts, we can solve only first three parts for you. If you…
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: decreases after the occurrence of a spontaneous change. b. The entropy of any substance at…
A: According to thermodynamics, the entropy of substance measures the randomness or disorder of a…
Q: 4. The entropy will usually increase when 1. a molecule is broken into two or more smaller…
A:
Q: What are the sign and magnitude of the entropy change for the reaction? Does the sign of Δ
A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…
Q: Which of the following substances is likely to have the highest entropy? Link to Physical Constants…
A: The substances given are He, H2, CO2, N2 and H2O (l).
Q: For each of the following reactions, indicate whether you would expect the entropy of the system to…
A: Entropy is the randomness in the system. Gases have more entropy than liquids. Similarly, liquids…
Q: Indicate whether each process produces an increase or decrease in the entropy in the system. Please…
A: We have to predict whether we have increase or decrease in the entropy of the system.
Q: In a certain spontaneous process, the system undergoes an entropy change of 4.2 J>K; therefore,…
A: For a spontaneous process, the entropy of a system is less than the entropy of surroundings.
Q: Without reference to any data tables, choose which member of the following pairs has the lesser…
A: Entropy is defined as the randomness of the system.
Q: Which of the following substances has the largest molar entropy? Why? HCI (g) HCI (s) HCI (1) HBr…
A: Molar entropy is the randomness of a molecule.The molar entropy depends on the state of a molecule…
Q: 11. For which of the following reactions will the entropy of the system decrease? A. 2 NH3(g) …
A: Gas has more entropy than liquid which have more entropy than solid. In the above reaction D. there…
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…
Q: A simple chemical system has an entropy value of 8.07E-23 J/mol K. How many microstates does this…
A: By the relationship between entropy and microstate , we have ; S = KB ln Ω ----------------(I)…
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- For each process, predict whether entropy increases or decreases, and explain how you arrived at your prediction. 2 CO2(g) → 2 CO(g) + O2(g) NaCl(s) → NaCl(aq) MgCO3(s) → MgO(s) + CO2(g)For each process, tell whether the entropy change of the system is positive or negative. (a) A glassblower heats glass (the system) to its softening temperature. (b) A teaspoon of sugar dissolves in a cup of coffee. (The system consists of both sugar and coffee.) (c) Calcium carbonate precipitates out of water in a cave to form stalactites and stalagmites. (Consider only the calcium carbonate to be the system.)Which contains greater entropy, a quantity of frozen benzene or the same quantity of liquid benzene at the same temperature? Explain in terms of the dispersal of energy in the substance.
- Solid NH4NO3 is placed in a beaker containing water at 25 C. When the solid has completely dissolved, the temperature of the solution is 23.5 C. (a) Was the process exothermic or endothermic? (b) Was the process spontaneous? (c) Did the entropy of the system increase? (d) Did the entropy of the universe increase?For each process, tell whether the entropy change of the system is positive or negative, (a) A glassblower heats glass (the system) to its softening temperature, (b) A teaspoon of sugar dissolves in a cup of coffee. (The system consists of both sugar and coffee.) (c) Calcium carbonate precipitates out of water in a cave to form stalactites and stalagmites. (Consider only the calcium carbonate to be the system.)The standard molar entropy of methanol vapor, CH3OH(g), is 239.8 J K1 mol-1. (a) Calculate the entropy change for the vaporization of 1 mol methanol (use data from Table 16.1 or Appendix J). (b) Calculate the enthalpy of vaporization of methanol, assuming that rS doesnt depend on temperature and taking the boiling point of methanol to be 64.6C.
- Through photosynthesis, plants build molecules of sugar containing several carbon atoms from carbon dioxide. In the process, entropy is decreased. The reaction of CO2with formic acid to form oxalic acid provides a simple example of a reaction in which the number of carbon atoms in a compound increases: CO2(aq)+HCOOH(aq)H2C2O4(aq) (a) Calculate the standard entropy change for this reaction and discuss the sign of S . (b) How do plants carry out reactions that increase the number of carbon atoms in a sugar, given the changes in entropy for reactions like this?A key component in many chemical engineering designs is the separation of mixtures of chemicals. (a) What happens to the entropy of the system when a chemical mixture is separated? (b) Are designs for chemical separation more likely to rely on spontaneous or nonspontaneous processes?What is the sign of the entropy change for each of the following processes? The system is underlined. (a) A plate is dropped on the floor and shatters. (b) A shuffled deck of cards is reordered from aces to deuces. (c) Iron rusts into iron oxide. (d) A wooden fence rots.
- For each of the following processes, identify the systemand the surroundings. Identify those processes that arespontaneous. For each spontaneous process, identify theconstraint that has been removed to enable the process to occur: Ammonium nitrate dissolves in water. Hydrogen and oxygen explode in a closed bomb. A rubber band is rapidly extended by a hangingweight. The gas in a chamber is slowly compressed by aweighted piston. A glass shatters on the floor.Consider the reaction of 2 mol H2(g) at 25C and 1 atm with 1 mol O2(g) at the same temperature and pressure to produce liquid water at these conditions. If this reaction is run in a controlled way to generate work, what is the maximum useful work that can be obtained? How much entropy is produced in this case?According to Lambert, leaves lying in the yard and playing cards that are in disarray on a table have not undergone an increase in their thermodynamic entropy. Suggest another reason why leaves and playing cards may not be a good analogy for the entropy of a system containing, for example, only H2O molecules or only O2 molecules.