16. The standard enthalpy of vaporization of methanol is 35.2 kJ/mol at its normal boiling point, 64.6°C. What is the standard change in entropy for the vaporization of methanol at its normal boiling point? A. 104 J/(mol· K) B. 35.2 J/(mol· K) C. 0.544 J/(mol· K) D. 544 J/(mol- K) E. 0.104 J/(mol· K)

Q: Which process has a larger entropy change: melting ice or boiling water? Explain.

A: The entropy is the degree of randomness or disorder of matter. Gas particles have higher kinetic…

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: Estimate the boiling point of an unknown substance in deg C if the latent heat of vaporization of…

A: We have to predict the boiling point.

Q: silicon, Si, the heat of vaporization at its normal boiling point of 2355 °C is 297.1 kJ/mol. The…

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Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: Given: No. of Moles=2.91 mol Boiling point=61.2+237.15K=334.35K The heat of vaporization= 29.6…

Q: Rank each set of substances in order of increasing standard molar entropy (S"). Explain your…

A: a) The entropy of the substance directly proportional to the molar mass of the substance, The order…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: According to the question about the formation of ammonia we have, The Change (decrease) in the…

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

A:

Q: ow as it ripens D. A&B C. Throwing 50 coins results in all tails 8. According to the third law of…

A: Third law of thermodynamics states that  Entropy of a pure substance at perfectly crystalline state…

Q: What is the entropy change, in J mol1 K1, when 100.0 g of water boils at 100.0 °C? (AHvaporization…

A: Since the entropy change is given by  ΔS = ΔHvaporization / Tboiling point  where Tboiling point =…

Q: a) For the vaporization of a liquid at its boiling point, A(l) → A(g), is the entropy change of the…

A: The entropy tells the randomness present in the system due to its disorderness created in the system…

Q: Arrange each group in order of decreasing standard molar entropy (S°). Explain.(a) ClO4-(aq),…

A:

Q: Consider the combustion of propane gas:C3H8(g) + 5 O2(g)---------->3 CO2(g) + 4 H2O(g) ΔHrxn =…

A: The reaction of combustion of propane

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: Calcium carbonate is the major component in limestone. Limestone is one of the prominent rocks in…

A: CaCO3(s) .....> CaO(s) + CO2(g) dS° = summation of (entropy of product - entropy of reactant)

Q: State whether the sign of the entropy change expected for each of the following processes will be…

A: Entropy is a thermodynamic quantity that is a measure of randomness. The more entropy, the more will…

Q: For each process predict the sign of the entropy change taking place. A. CaCO3(s) → CaO(s) + CO2(g)…

A: Entropy(S) is defined as the randomness or disorderness of the system. When entropy increases, then…

Q: At 25°C, the formation of ammonia from its elements results in a decrease in entropy (∆SRXN = -197…

A: we have to calculate the value of ∆SUNIV

Q: Which substance has the higher entropy?(a) dry ice (solid CO2) at -78°C or CO2(g) at 0 °C(b) liquid…

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

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A:

Q: Consider a substance with a melting point of 176 K. If this substance is in a container at 115 K…

A:

Q: 5) Find the molar entropy of vaporization (in J/(K-mol)) for a certain substance given that to…

A:

Q: 10. What is the correct equation in solving for the entropy of a chemical reaction?  A. Σentropy of…

A: Entropy of a system can be defined as the degree of disorder in system or degree of randomness in…

Q: Chloroform, CHCI3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: Given : Moles of CHCl3 evaporated = 9.80 mol. Heat of vaporization of CHCl3, ΔHvap = 29.6 KJ/mol =…

Q: Rank each set of substances in order of increasing standard molar entropy (S°). Explain your…

A: Kindly post other two parts (b, c) as separate question a) Each substance which are given in part a…

Q: Which has the highest entropy, S? A. 1 mole of I2(s) at 298 K, 1 atm B.1 mole of F2(g) at 298 K, 1…

A: Which one has highest entropy should be written.

Q: are the signs for ΔH° and ΔS°, for a reaction that is ONLY spontaneous at low temperatures:

A:

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: We have:   Thus, the amount of energy required to boil 1.44 moles of CHCl3 is:

Q: g_2021 [References] Chloroform, CHC13, is a solvent and has been used as an anesthetic. The heat of…

A:

Q: At 25 degrees C, what are the signs of deltaH, deltaS, and deltaG for I2(s)-->I2(g)?

A: In this question, we will Identify the signs for ∆H, ∆S and ∆G for given Reaction.  You can see…

Q: 4.14)  A sample of neon (Ne) gas initially at 20 C and 1.0 atm is expanded from 1.2 L to 2.6 L and…

A: The temperature has to be converted from degree Celsius to Kelvin.

Q: What is the entropy when 1.53 moles of CCl,F2 vaporize at 25°C? [AH(vap) = 17.2 kJ/mol at 25°C]

A: Number of moles of CCl2F2, ∆H(vap) and the temperature for which entropy is to be determined.

Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: ∆Hvap= 40.7 kJ/mol = 40.7 × 1000 J/mol Water boils at 100°C = 373 K For the vapourization of water,…

Q: The value of AHtransition of C(graphite)-C(diamond) is 1.9 kJ/mol at 25 °C. Entropy of graphite is…

A:

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

A: Entropy can be defined as the randomness or disorderness. Higher the number of gaseous molecules,…

Q: B. Entropy 5. Which of the following are A. Entropy and B. Entropy and

A:

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: Which process(es) listed below occur with an increase in entropy? (i) Water in the ocean warms up…

A: Entropy is a measure of the randomness of the molecules of a substance. For a spontaneous reaction…

Q: Which substance has the higher entropy? a. a sample of pure silicon (to be used in a computer chip)…

A: answer

Q: entropy

A:

Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: The entropy change (in J/K) is to be calculated.

Q: 4. The entropy will usually increase when 1. a molecule is broken into two or more smaller…

A:

Q: 1point You got a new lego set on your birthday and you build an air plane. The change in the entropy…

A: 3 1 pont You got a new lego set on your birthday and you build an air plane. The change in the…

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

A:

Q: 6. Use the chart to answer parts (a), (b), and (c) of this question. (a) Predict the sign of the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: The relation between deltaH vaporization and change in entropy is:

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]

A:

Q: 2 ΔΗ for the vaporization of benzene is 31.0 kJ/mol, and the boiling point (at atm of pressure) is…

A: We have been given that

Q: :The entropy of a reversible process is .A Sf = Si .B Sf>Si .C Sf < Si

A:

Q: For each pair listed below, which choice has the substance with the highest entropy listed first?…

A: Entropy is defined as the degree of disorder in the substance. The factor that affects the entropy…

Q: Consider the following reaction: N2(g) + 3H2(g) ⇄ 2NH3(g) A) Determine ∆Hrxn˚ and ∆Srxn˚ using the…

A:

Q: Chloroform, CHC13 , is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: The entropy change (∆S) is related to heat of vaporization (∆Hvap) by following equation: Here, the…