Question

What Is conduction in simple words?

Answer 1

1. The phenomenon of conduction is the transmission of heat energy between neighboring atoms or molecules via interactions.
2. Solids, which have particles that are close together, conduct better than gases and liquids, which have particles that are far away.
3. The heat transfer in conduction is represented by the equation $q=-k\nabla T$, where $q$ is the heat flux density, $k$is the conductivity of the material, $\nabla T$ is the change in temperature.
4. When colliding particles, such as molecules, atoms, and electrons, come together, they transmit disordered tiny kinetic and potential energy, which is referred to as internal energy.
5. Conduction occurs in all stages, including solids, liquids, gases, and plasma.
6. Heat transfers from a hotter to a cooler body on its own.
7. Temperature variations inside a body or between bodies diminish with time in the absence of an opposing external driving energy source, and thermal equilibrium is approached, with temperature becoming more uniform.