The normal boiling point of ethanol, C,H;OH, is 78.3°C, and its molar enthalpy of vaporization is 38.56kJ/mol. What is the change in entropy in the system when 68.3 g of ethanol vapor at 1 atm condenses to liquid at the normal boiling point? O 163J/K O 160J/K O -163 J/K O -160J/K

The normal boiling point of ethanol, C,H;OH, is 78.3°C, and its molar enthalpy of vaporization is 38.56kJ/mol. What is the change in entropy in the system when 68.3 g of ethanol vapor at 1 atm condenses to liquid at the normal boiling point? O 163J/K O 160J/K O -163 J/K O -160J/K

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

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

A: The question is based on the concept of chemical thermodynamics. we have to calculate entropy of…

Q: What to do: Identify whether the entropy change of the system in each of the following reactions is…

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

Q: Using Thermochemical Data, calculate ΔS for the following reaction. Is entropy increasing or…

A: ANSWER IS

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: Photochemical smog is formed through a sequence of reactions, the first of which is N2(g) + O2(g) ⟶…

A: For a reaction to be spontaneous , should be negative Hence value of should be greater than ,

Q: Which of these processes result in an entropy decrease of the system?

A: Entropy means randomness. All spontaneous processes have positive or zero entropy change. This means…

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

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: Calculate the entropy of the equation below: CaCO3(s) → CO2(g) + Cao (s) CaCO3(s) = 92.9 J/K.mol…

A: The balanced chemical equation is: CaCO3(s) ---->CaO(s) + CO2(g)

Q: Consider the following reaction under the standard state. 2 NO3 (g) = 2 NO2 (g) + O2 (g) The…

Q: Which of the following statements best describe the entropy change of this reaction CO(g) + H2O(g) →…

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: What is the entropy change (in J/K) associated with the formation of 15.0 g of SO2 for the reaction…

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

Q: The standard molar entropy of silver chloride (AgCl) is 96.2 J/(mol x K). What is the entropy of…

Q: A metal alloy melts with an enthalpy change of 75 kJ/mol and an entropy change of 133.0 J/K.mol.…

A: For the melting of alloy, Enthalpy change (∆H) = 75 kJ/mol…

Q: entropy change

Q: The normal boiling point of ethanol, C2H5OH, is 78.3 °C. Its molar enthalpy of vaporization is 38.56…

A: Molar heat of vaporisation of a substance is defined as the amount of heat absorbed by one mole of…

Q: Calculate the entropy change (in J/K) that occurs when 31.7 g of ice melts at its normal melting…

A: we have to calculate the entropy change

Q: Which of the following cases has a decrease in entropy? Vaporization of water. Formation of H20 (g)…

A: The disorderness of the system is called as entropy. It is expressed by S . The standard entropy at…

Q: How does the entropy (S) of the system change when heating hydrogen gas from 60.0°C to 80.0°C?

A: Entropy is a measure or tendency in nature for systems to went towards a physical or chemical state…

Q: What is the entropy change when 2.50 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Given data is Moles of CCl2F2 vaporized = 2.50 ∆H(vap) = 17.2 kJ/mol at 25.0 °C

Q: Calculate the entropy of the equation below: 4 KCIO3(s) → 3 KCIO4(s) + KCI (s) KCIO3 = 142.97…

Q: What is the entropy (S) of a system with 8.3 x 1030 microstates? 5.5 x 1022 J/K 4.4 x 10-22 J/K 8.5…

A: We have to calculate the entropy of system.

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: A reaction has ΔH∘rxn= -139 kJ and ΔS∘rxn=303 J/K . Part A At what temperature is the change in…

A: GIven: ΔH∘rxn= -139 kJ=-13900 J ΔS∘rxn=303 J/K . Now, ∆Ssurrounding = ∆Hreaction / T

Q: positive entropy change.

Q: An example of a reaction where ∆G = 0 is C(graphite)→C(diamond) any synthesis reaction…

A: We know, The value of ∆G = 0 when the reaction is at an equilibrium.

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

Q: Calculate the entropy change, A Suniverse for the following reaction, at standard condition. CO2 (g)…

Q: Phase transitions must be included when considering entropy What is the final temperature when 5.20…

A: The objective of the question is to find the final temperature when ice is added to water and the…

Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

Q: Using the entropy values in the table below, what is the standard change in entropy, AS, for the…

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: What is the entropy change when 0.17 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

A: From datas given We are using below formula to calculate entropy change by plugging all values as…

Q: What is the entropy change when 1.55 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

Q: What is the entropy change of the system in J/K for the reversible cooling of one mole of copper…

Q: The entropy of vaporization for a certain organic compound is 28.1 J/Kmol, and the boiling point is…

A: given data entropy of vaporization 28.1 J/kmol boiling T=51.7 ;c find out enthalpy of vaporization

Q: What is the entropy change when 2.30 moles of CCl₂F₂ vaporizes at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at…

A: Answer: Entropy is the measure of randomness of the system. In more possible states system can…

Q: The heat of fusion AHF of propane C3H8 is 3.5 kJ/mol. Calculate the change in entropy AS when 78 g…

A: When a solid changes into liquid at its melting point the entropy of the system increases. The…

Q: A 870-g quantity of a substance is at its melting point of -117.9°C in the liquid state. The heat of…

Q: In which of the following processes does the entropy of the system decrease? Select one: H2(g) +…

A: > In a chemical reaction if gaseous moles increases than entropy increase. > for gases if…

Q: Acetone, CH; COCH3 , boils at 56°C. The heat of vaporization of acetone at this temperature is 29.1…

A: Given: Boiling point temperature= 56 C=329.15 K Heat of vaporization= 29.1 kJ/mol

Q: For a particular reaction, Δ?∘=67.7 kJ/mol and Δ?∘=126.9 J/(mol⋅K). Assuming these values change…

A: Given : ΔHo of reaction = 67.7 KJ/mol = 67700 J/mol…

Q: (Q66). What is the change in entropy (in J/K) when 16.9 g of liquid hexane boils at its normal…

A: we need to calculate the change in entropy for hexane

Q: Given the particulate models here that depict Cu in solid form, Br2 in liquid form, and He in…

A: The change in entropy of copper when converted to a gas :Given:S° for Cu(s) = 33.2 J/(mol•K)S° for…

Question

The normal boiling point of ethanol, C2H5OH, is 78.3°C, and its molar enthalpy of vaporization is 38.56KJ/mol. What is the change in entropy in
the system when 68.3 g of ethanol vapor at 1 atm condenses to liquid at the normal boiling point?
O 163J/K
O 160J/K
O -163 J/K
O -160J/K

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

For water, H20, the heat of vaporization at its normal boiling point of 100 °C is 40.7 kJ/mol. The entropy change when 1.76 moles of H20 vapor condenses at 100 °C, 1 atm is J/K.
Vhat is the standard free-energy change, AGº, for the following reaction at 44.5 °C? N2(g) + 3H2(g) → 2NH3(g) Substance AHf (kJ/mol) AS°(J/K•mol) N2(8) H2(g) NH3(g) 191.6 130.6 -45.9 192.7 AG° = kJ
A hot rock ejected from a volcano’s lava fountain cools from 1100C to 40.0C, and its entropy decreases by 950 J/K. How much heat transfer occurs from the rock?
estimate the temperature that one would have to heat 1 L of water to, starting at 0 °C, reversibly, in order to create an entropy change of 1116 J/K^-1 mol^-1
The heat of vaporization of carbon disulfide, CS2, at 25°C is 27.2 kJ/mol. What is the entropy change when 1.60 mol of vapor in equilibrium with liquid condenses to liquid at 25°C? The entropy of this vapor at 25°C is 243 J/(mol.K). Entropy change J/K = What is the entropy of the liquid at this temperature? Entropy J/K =
Consider the combustion of propane gas: C3H8(g) + 5O2(g) ------> 3CO2(g) + 4H2O(g) ΔHrxn = - 2044 kJ Determine the sign of the entropy change for the system.
What is the entropy change when 1.20 moles of CCl₂F₂ condenses at 25.0 °C? [∆H(vap) = 17.2 kJ/mol at 25.0 °C]?
Which of the following processes shows an increase in entropy of the system? 2NO₂(g) → 2NO(g) + O₂(g) CO(g) + Cl₂(g) → COCI₂(g) CO(g) + 2H₂(g) → CH₂OH(I) Na+ (aq) + CIO3(aq) → NaClO3(s)
What is the entropy change when 1.90 moles of CHCl3 condenses at 61.0 °C? [AH(vap) = 29.6 kJ/ mol at 61.0 °C]
What is the change in entropy, AS, for the following reaction? Use Table G in your book for values of standard entropies. Your answer should be in J/K mol. CaCO3(s) + 2 H'(aq) → → Ca² (aq) + H₂O(l) + CO2(g) O 264.9 J/K mol O 118.6 J/K mol 394.3 J/K mol 137.7 J/K mol 2
What is the entropy change when 45 g of water vapor condenses and becomes liquid water? The heat of fusion of water is 333 J/g, and the heat of vaporization of water is 2260 J/g. The freezing point of water is 0 °C, and the boiling point of water is 100 °C.
For silicon, Si, the heat of fusion at its normal melting point of 1410 °C is 46.4 kJ/mol. The entropy change when 2.12 moles of liquid Si freezes at 1410 °C, 1 atm is J/K.