Second Law of Thermodynamics

Jun 17th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

The second law of thermodynamics is a general principle which places constraints upon the direction of heat transfer and the attainable efficiencies of heat engines. In so doing, it goes beyond the limitations imposed by the first law of thermodynamics. Its implications may be visualized in terms of the waterfall analogy:

Word Count: 1283
Showing Page: 1/5
Second Law of Thermodynamics The second law of thermodynamics is a general principle which places constraints upon the direction ofheat transferand the attainable efficiencies ofheat engines. In so doing, it goes beyond the limitations imposed by the first law of thermodynamics. Its implications may be visualized in terms of the waterfall analogy:If you are constrained to put your waterwheel half-way up the waterfall, then you can extract at most half of the available energy; if a 600K heat engine must exhaust heat at 300K, then it could be at most 50% efficient.The maximum efficiency which can be achieved is theCarnot efficiency.Second Law of Thermodynamics: It is impossible to extract an amount of heat QHfrom a hot reservoir and use it all to do work W. Some amount of heat QCmust be exhausted to a cold reservoirSecond Law of Thermodynamics: It is not possible forheatto flow from a colder body to a warmer body without anyworkhaving been done to accomplish this flow. Energy will not flow spontaneously from a lowtemperatureobject to a higher temperature objectSecond Law of Thermodynamics: In any cyclic process the entropy will either increase or remain the same.The second law also considers the entropy of a system. Entropy is a measure of the amount of disorder (chaos) in a system. A good rule of thumb is the more disorder you have, the more energy you have.Forward and BackwardYou might hear the termreversibility. Scientists use the ter

Review from student

Studypool Student
" Excellent job "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1821 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors