Explain why the entropy change when a gase expads isothermally?

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

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

Q: than the entropy of amorphous solids. The entropy of crystalline solids is generally O higher O…

A: The correct answer is given below

Q: Indicate whether each statement is true or false. (a) ΔSis a state function. (b) If a system…

A: (a) ΔS is a state function.  The process undergoing reversible change does not affect the entropy of…

Q: "he heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy…

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Q: 10. What is the sign (positive or negative) of the entropy change (AS) for each of the following: a.…

A: Given :-  a) H2O(l) → H2O(g)   b) N2(g) + 3H2(g) → 2NH3(g)  To determine :-  Sign for ∆S for given…

Q: Will the entropy for each of the following be positive or negative?…

A: Entropy increases with increase in the disorder or randomness of the system. it is represented by…

Q: Calculate the standard entropy change for the combustion of propane, a common fuel. C3H8(g) + 502(g)…

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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: What is the entropy change when 0.88 moles of CHCI: vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: Number of moles = 0.88 moles  ∆H(vap) = 29.6 KJ/mol  Temperature = 61.0 °C  Entropy change = ?

Q: If the normal boiling point of a liquid is 67 °C, and thestandard molar entropy change for the…

A: The boiling point of a given liquid can be defined as the temperature at which the vapor pressure of…

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 action will increase the entropy of 1 mole of atomic oxygen? A. Increasing the volume of the…

A: The variation of one of the important thermodynamic variable such as entropy w. r. t.  change in…

Q: If the entropy for a chemical change at 27°C is -10 J/K and ΔH for the reaction is -20 kJ, ΔG is __.

A: Given :-  ∆H = -20 KJ  T = 27°C  ∆S = -10J/K  To calculate :- ∆G

Q: Use the following information to find entropy of the vaporization of Sn (tin). The boiling point…

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Q: What is the entropy when 1.96 moles of CCI,F, vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C] |…

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Q: Calculate the standard molar entropy change for the combustion of methane gas using S° values from…

A: The equation for combustion of methane gas is, The standard entropy value for oxygen O2 is…

Q: Calculate the absolute entropy, S° , per mole of 03 (g).

A: The enthalpy change of the given reaction can be calculated as,

Q: Of the following, the entropy of ________ is the largest. HBr(g) HCl(g) HI(g) HCl(s) HCl(l)

A: Entropy is nothing but the randomness or disorderness of system. Order of entropy is based on…

Q: he standard entropy change, ancwor to ono ocimal nlace

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Q: What is the entropy change when 0.17 moles of CHCI, vaporizes at 61.0 °C? [AH(vap) = 29.6 kJ/mol at…

A: When a liquid changes into the gas at its boiling point the entropy of the system increases.

Q: 9. For any substance, the only case entropy has a zero value, when *

A: The third law of thermodynamics :  The law states that the entropy of a purely and perfectly crystal…

Q: What is the entropy when 1.20 moles of CCLF2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Entropy change at constant temperature is given by  where ΔS = entropy change  Q = heat transferred…

Q: A mole of N2 is allowed to expand from 0.5L to 10L at constant Temerature . calcuate its Entropy ?

A: The simplest practical reversible method to be used to compute the entropy is isothermal pathway if…

Q: The heat of vapoorizatiom AHyof ammonia (NHg)is 23.4KJ/mel.coleulate the change in entropyss when…

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Q: C. C,H,(g) + 30,(g) · 2 CO,(g) + 2 H,0(1) The entropy, ASxn, mol Angas increases. decreases. has…

A: Calculate change in mole and sign of entropy --

Q: what is the change in entropy of the reaction NH4Cl(s) = NH3(g) + HCl(g) wherein the equal sign…

A: The reaction given is, => NH4Cl (s) → NH3 (g) + HCl (g)

Q: Which of the following has the greatest molar entropy? All have the same O F2 () O F2 (s) O F2 (s)

A: Entropy: Entropy can be defined as the measurement of randomness or disorderness in the…

Q: What is the entropy change for an adiabatic reversible process? O Zero O Negative O One O Positive

A: In an adiabatic reversible process, there is no change of heat in the process.

Q: Calculate the entropy, S, when a. W = 18.6 b. W = 50.63 c. W = 14.7 d. W = 2.90

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Q: Calculate the entropy change for 200.0 g of N2 gas that is compressed from a pressure of 0.715 atm…

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Q: Which of the following has a negative entropy?   a.) Evaporationg one mole of a liquid b.) None…

A: Entropy is a thermodynamic property that is defined as the degree of randomness. If a reaction gives…

Q: Diethyl ether is a liquid at normal temperature and pressure, and it boils at 35°C. Given that ΔH…

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Q: The following reactions take place at 25 °C and 1 atm. Calculate the entropy change for urrounding.…

A: The change in entropy of the surroundings is a measure of how much energy is being taken in or given…

Q: Which of the following is incorrect about entropy of a substance? O Slig > 0 Sgas = 0 O Sliquid >…

A: Entropy: It is the measure of disorder/randomness of a system. Order of entropy: Gas> liquid >…

Q: What is the molar entropy of pure oxygen gas at 25 °C? O Equal to zero O Less than zero Greater than…

A: According to third law of thermodynamics at absolute zero temperature entropy of pure crystalline…

Q: Which of the following statements is TRUE? Group of answer choices The total entropy of a sample…

A: Entropy is a measure of degree of disorderness. change in entropy of universe = change in entropy of…

Q: Determine the sign of entropy change (+∆S or -∆S): a. Evaporation of a liquid b. Water freezes c.…

A: ***Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: Do you need to specify the temperature to calculate the entropy change? Explain.

A: Entropy is the measure of randomness or chaoticness . With increasing in the randomness or…

Q: Which of the following statements concerning entropy change is/are true? 1. For a reversible…

A: For a reversible process, ∆S = 0  So, 1 is incorrect.

Q: Determine the standard entropy of N2(g) given the following information: N2(g) + 3H2(g) = 2NH3(g);…

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Q: Calculate the entropy of the phase change of uranium hexafluoride from gas to solid. UF6(g) → UF6(s)…

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Q: What is the entropy when 1.36 moles of CCI,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

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Q: HI has a normal boiling point of –35.4°C, and its ΔHvap is 21.16 kJ/mol. Calculate the molar entropy…

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Q: Which of the following represents a process that is always spontaneous? ASsys: negative ASsurr:…

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Q: Considering entropy (S) as a thermodynamic parameter , the criterion for spontaneity of any process…

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Q: Constants | Periodic Table ), best describes the entropy changes for the process at temperature…

A: When water molecules converted into gas vapour form then volume of the system Increases means…

Q: The enthalpy of the graphite to diamond phase transition, which under 100 kbar of pressure occurs at…

A: Enthalpy of the graphite to diamond phase transition = +1.9 kJ/mol = +1900 J/mol ( 1KJ = 1000 J)…

Q: 3. 2. 1 shift sifı the absolute entropy for Oz (g) is u26 07 Coiole k), what-i3 the AS forithe…

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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…