## Explain Fourier’s Law of Heat Conduction - Assumption, Essential Features and Equation

Heat and Mass Transfer Thermodynamics### Assumptions of Fourier’s law

The Fourier's law based on the following assumption:

1. The material is homogeneous and isentropic, meaning that the value of thermal conductivity is constant in all direction.

2. Isothermal bounding surfaces.

3. Heat conduction takes place in the steady-state.

4. Heat flow is unidirectional (from higher temperature to lower).