Question 3: (a) What is the second law of thermodynamics? For any process, thereare four possible sign combinations for ASsys and ASurr. Which sign com-bination(s) always give a spontaneous process?(b) For mercury, the enthalpy of vaporization is 58.51 kJ/mol and the en-tropy of vaporization is 92.92 J/K.mol. What is the normal boiling pointof mercury?

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Answered: Question 3: (a) What is the second law…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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This problem is (8.4) from a book "Thermodynamics and Statistical Mechanics An Integrated Approach by M. Scott Shell"
This problem is (7.12) from a book "Thermodynamics and Statistical Mechanics An Integrated Approach by M. Scott Shell"
デジタル形式で段階的に解決ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT av (+),--), Exercise 5. Check the validity of Maxwell's last relation (Eq. 12-19) for water vapor at 300 °C and 300 kPa. Use the same pressures as the sample exercise, just change the T to 300 K. (12-19)
The second virial coefficient is related to pair-wise potential function via B(T) = 2πNA (1- e-/kr) r²dr. Use the hard sphere pairwise potential function to find B(T).
*Energy Balances Answer the following in (Truejor (Fals) 1- A closed unsteady state Gystem can not be isothermal system. 12- A closed system must be adiabatic 3- for real gas DH = f "apdT is an 4-potential energy has no exact expansion. unique absolute value 5- the law of the coffer conservation of energy that all in system. energy change 6- heat transfer to an closed, Un steady state, system can not Zero. 7- the shaft work done by the pump and motor location in the system is posetive. 8- The molar heat of vaporization of tho is 40.7 kj/mol 9- Potential energy can over be negative. T₂ 10- for liquid below Tr =0.75 or a solid, DU =S cpdt 11- Cu cannot be used to calculate DĤ-you have cp use 12-1f. the energy crossing crossing the boundray of closed system is not heat, it must be work to 541 Zero 16- 17- The shaft work done by a pump and motor located In side the system is positive w. 13- Can the kinetic energy of a mass be zero, if the mass a velocity 14-Tempreture is measure of the…
A refrigerator works by taking advantage of the ΔH of phase changes during the vaporization and condensation of Freon-12 (CCl2F2).What is the sign of the ΔH for each of the following changes? Answer with a word not a mathematical symbol. CCl2F2 (g) → CCl2F2 (l) -- negative H2O (l) → H2O (s) -- negative CCl2F2 (l) → CCl2F2 (g) -- positive Now imagine that you want to make some ice in the freezer of this refrigerator. How many grams of Freon-12 (CCl2F2) must be vaporized, to remove enough heat to freeze 397.4 grams of water at 0°C to ice at 0°C? The ΔHfusion for water = 6.01 kJ/mol, and the ΔHvap for Freon-12 = 17.4 kJ/mol.
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Question 3: (a) What is the second law of thermodynamics? For any process, there are four possible sign combinations for ASys and ASarr. Which sign com- bination(s) always give a spontaneous process?