Is it possible to wholly convert a given amount

Log in. Discuss whether or not it is possible to wholly convert a given amount of mechanical energy into thermal energy. Is it possible to wholly convert a given amount of thermal energy into mechanical energy? Cite examples to illustrate your answers. According to Kelvin Plank's statement, it is impossible to wholly convert the given amount of mechanical energy into thermal energy.

When a moving body having kinetic energy is put into rest by applying friction, all its kinetic energy is transformed into thermal energy. For example, when a car skids while applying friction to rest on a road then a part of its friction gets converted into thermal energy.

Similarly, it is not possible to wholly convert a given amount of thermal energy into mechanical energy. Only a fraction of a given amount of thermal energy can be converted into mechanical energy. For example - when fuel is burnt in power plant, less than half of the thermal energy only is generated into mechanical energy. This problem is a thermodynamics question. Um, it deals with moving objects.

So if I have an object that is moving like a block, let's say it's sliding along the surface. And it's got some mechanical energy because as a velocity that energy is gonna be dissipated as a result of friction occurring FF between the surface and that block and friction results from molecular interaction.

So ultimately, uh, you end up with vibrations, uh, in the surfaces and temperatures, you know, is a measure off kinetic energy of the molecules of a substance. So ultimately, all of the mechanical energy turns into useless heat.

And so the first question asks, Is it possible the Holy Converted given amount of thermal energy and mechanical energy? I'm sorry you got it backwards. Discuss whether or not it's possible to convert all mechanical energy into thermal energy. So I guess that's question a. The answer for that question would be yes. In fact, that's what all energy ultimately turns into.

For Part B, it asks, Can you turn thermal energy back into mechanical energy? All of it? And the answer is no. Because that violates the second law of thermodynamics. Um, you can have all that thermal energy turning back into something more productive and so no for that part, and it asked for examples that illustrate your answers. So for part A, maybe a sliding, sliding block coming to rest did for part B, perhaps a combustion engine.

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Get homework help and answers to your toughest questions in biology, chemistry, physics, math, calculus, engineering, accounting, English, writing help, business, humanities, and more. Step-by-Step Solution: Solution 12E Step 1 of 3 : Mechanical energy can be completely converted into thermal energy or heat energy. Step 3 of 3. Textbook: Conceptual Physics Edition: Author: Paul G. Hewitt ISBN: Other solutions. View Full Material.

Does it People also purchased. A dart leaves the barrel of a blowgun at a speed v. The length of Related chapters. Chapter Conceptual Physics 12th Edition.

Chapter 1.