A closed or isolated system is not practically achievable due to the inherent nature of energy transfer. Even within a vacuum, thermal radiation emitted from the inner surfaces of the vacuum chamber allows for energy exchange. This principle is exemplified by the sun's ability to transmit electromagnetic radiation through the vacuum of space, demonstrating that radiation does not require a medium for propagation. Therefore, while theoretical discussions may suggest isolation, practical applications reveal that complete isolation is impossible.
PREREQUISITESStudents of physics, engineers working with vacuum technologies, and anyone interested in the principles of thermodynamics and energy transfer.
No, you can't have a perfectly isolated system. In the case of a vacuum, thermal radiation will be emitted by the inner surface of the vacuum chamber and reach the system that way. The most obvious (and important for humans!) example of this is the sun.VishalB95 said:In practice, is a closed or isolated system possible?
My friends keep saying No, but isn't a system inside say, a vacuum isolated?
There is no outer atmosphere for transfer of energy to take place.
How does sunlight reach Earth? There's a vacuum between the Earth and the sun. Electromagnetic radiation does not require a medium.VishalB95 said:How can radiation be transmitted without a medium??