It is generally assumed that perpetual motion machines are impossible to construct. Is it inconsistent to say that molecules are in perpetual motion?
Step 1 of 3
Solution 46E A perpetual motion machine and perpetual motion are different. A perpetual motion machine is a machine which generates more energy than it consumes. This violates the conservation of energy and hence it is not possible to build a perpetual motion machine. But perpetual motion is the motion that continue indefinitely, that is the motion never stops. This actually does not violates any law. For the case of molecule, even though they continue their motion indefinitely, they don’t generate any extra energy. Hence it does not violate the conservation of energy. So, since the molecules are always moving, it is not inconsistent to say that the molecules are in perpetual motion.
Textbook: Conceptual Physics
Author: Paul G. Hewitt
This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. Since the solution to 46E from 18 chapter was answered, more than 542 students have viewed the full step-by-step answer. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. The answer to “It is generally assumed that perpetual motion machines are impossible to construct. Is it inconsistent to say that molecules are in perpetual motion?” is broken down into a number of easy to follow steps, and 23 words. This full solution covers the following key subjects: motion, perpetual, machines, impossible, inconsistent. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. The full step-by-step solution to problem: 46E from chapter: 18 was answered by , our top Physics solution expert on 04/03/17, 08:01AM.