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: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Related questions
Question
thumb_up100%
A closed, nonconducting, horizontal cylinder is fitted with a nonconducting, frictionless. floating piston which divides the cylinder into Sections A and B. The two sections contain equal masses of air, initially at the same conditions. T1 = 348 K and P1 = 1 atm. An electrical heating element in Section A is activated, and the air temperatures slowly increase: TA in Section A because of heat transfer, and TB in Section B because of adiabatic compression by the slowly moving piston. Treat air as an ideal gas with Cp = 7/2 R, and let nA be the number of moles of air in Section A. For the process as described, evaluate one of the following sets of quantities:
TA, TB, and Q/nA, if P(final) = 1.75 atm.
TB, Q/nA, and P(final), if TA = 465 K.
TA, Q/nA, and P(final), if TB = 345 K.
TA, TB, and P(final), if Q/nA = 5 kJ mol-1.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 6 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.Similar questions
- In constant-pressure process in a cylinder air expands at 400 kPa from 10 L to 30 L in volume. The device is insulated and a paddle wheel does shaft work to the system. If internal energy change during this process is 15 kJ Find the enthalpy change.arrow_forward4. Steam enters a cylinder fitted with a piston at a pressure of 20 MN/m² and a temperature of 500 deg C. The steam expands to a pressure of 200 kN/m² and a temperature of 200 deg C. During the expansion there is a net heat loss from the steam through the walls of the cylinder and piston of 120 kJ/kg. Determine the displacement work done by one kg of steam during this expansion.arrow_forwardThermal systems problem: Assume that nitrogen is available in a storage tank at 2 MPa and 210 K. On the following chart, show the path for the following scenarios. a) An expansion valve is connected to this tank that drops the fluid (i.e., nitrogen) pressure at its outlet to one atmosphere. b) A compressor is connected to this tank that raises the fluid pressure at its outlet to 10 MPa. c) A turbine is connected to this tank that drops the fluid pressure at its outlet to one atmospheric pressure. d) A heat exchanger is connected to this tank that raises the fluid temperature to 330K at its outlet. e) A heat exchanger is connected to this tank that drops the fluid temperature to 135K at its outlet. f) Show the process for the fluid to change its state from 2 MPa and 210 K to 14 MPa and 240 K. Identify the required equipment. g) If a coolant at 150 K is available, is it possible to change the state of nitrogen from 2 MPa and 210 K to saturated liquid at atmospheric pressure? If…arrow_forward
- PROBLEM 3 Saturated water vapor at 100 kPa is in a piston-cylinder device. At the initial state the piston is 0.2 m from the cylinder bottom. The water vapor is heated in a constant pressure process until the cylinder volume is doubled. Sketch this process on P-v and T-v diagrams. Find the final distance from the piston to the cylinder bottom and the final temperature.arrow_forwardFor a refrigerator designed to work stably, reversible as shown. Prove that the energy efficiency factor of this refrigerator is:arrow_forwardAnswer please!!arrow_forward
- B) A mercury thermometer having a time constant of (90 sec) is initially at (300°C). It is immersed in a bath maintained at (130°C) at t = 0. Determine the temperature reading at (t=3 min) and (t = 5 min).arrow_forwardSteam at 290 psia and 700ºF is supplied to the turbine of a steam plant operating under the ideal Rankine cycle. The turbine expands steam up to 10 psia. Determine: a) The quality of steam at the turbine outlet. b) The work of the turbine. c) The amount of heat supplied to the boiler. d) The thermal efficiency of the cycle and that of Carnot. e) Make a T-S diagram and a P-V diagram for this cycle.arrow_forwardA 1 m diameter cylinder, 1 m long, is maintained at 800 K and has an emissivity of 0.65. Another cylinder, 2 m in diameter and 1 m long, encloses the first cylinder and is perfectly insulated. Both cylinders are placed in a large room maintained at 300 K. Calculate the heat lost by the inner cylinder.arrow_forward
- (5)An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant pressure of 950 kPa. Water is stirred by a paddle wheel while a current of 15 A flows for 28 min through a resistor placed in the water. If 64% of the liquid is evaporated during this constant pressure process and the paddle-wheel work amounts to 600 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines. H,0 P= constant W. W.arrow_forwardQuestion 1.2 A helical coil cooler is used to cool 0.5 kg.s¹ of hot oil from 100°C down to 40°C. Cooling water with an inlet temperature of 10°C flows inside the coiled tube. The specific heat of the oil is 2 kJ.kg¹.K¹, the specific heat of the water is 4.2 kJ.kg¹.K¹, and the density of water is 1000 kg.m. a) Determine the lowest possible cooling water flow rate. (0.48 kg.s¹) b) Determine the inside diameter of the tube if a cooling water flow of 1.5 times the minimum is used, and the recommended flow velocity is 1 m.s. Select an appropriate tube from the following standard sizes: Outside diameter (mm) Wall thickness (mm) 30 1.5 35 2.0 40 2.0 45 2.5 50 3.0 c) For a heat transfer coefficient of U = 800 W.m2.K, determine the heat transfer surface area and the tube length of the heat exchanger. The oil inside the tank is mixed by a stirrer and the oil temperature at any location in the tank can be assumed to be equal to the oil outlet temperature. (Area = 4.12 m², length = 39.7 m)arrow_forwardA 7 dm3 rigid tank contains 4.5 kg of saturated water (liquid and vapor) at 38ºC. The tank is slowly heated. a. After a long period of time what do you think happened to the liquid water surface: do you think it raised and reached the top of the tank or it dropped and reached the bottom of it? b. Solve the same problem considering that the amount of water is 0.45 kg instead.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Introduction to Chemical Engineering Thermodynami...Chemical EngineeringISBN:9781259696527Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark SwihartPublisher:McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind...Chemical EngineeringISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Elements of Chemical Reaction Engineering (5th Ed...Chemical EngineeringISBN:9780133887518Author:H. Scott FoglerPublisher:Prentice Hall 
Industrial Plastics: Theory and ApplicationsChemical EngineeringISBN:9781285061238Author:Lokensgard, ErikPublisher:Delmar Cengage Learning
Unit Operations of Chemical EngineeringChemical EngineeringISBN:9780072848236Author:Warren McCabe, Julian C. Smith, Peter HarriottPublisher:McGraw-Hill Companies, The
Introduction to Chemical Engineering Thermodynami...
Chemical Engineering
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind...
Chemical Engineering
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Elements of Chemical Reaction Engineering (5th Ed...
Chemical Engineering
ISBN:9780133887518
Author:H. Scott Fogler
Publisher:Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:9781285061238
Author:Lokensgard, Erik
Publisher:Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:9780072848236
Author:Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:McGraw-Hill Companies, The