I need help answering these 3 questions.Thank YOU

-The concept of "energy concentration" can be used to relate, for example, Fick's Law to Fourier's Law. Explain how, starting from Fick's Law, you can derive Fourier's Law using this concept. Use this same derivation to explain the difference between thermal diffusivity and thermal conductivity.

-Explain the meaning behind the generic budget equation dc/dt = dF/dx. Draw a diagram to illustrate your answer.

-Starting with the generic budget equation dc/dt = dF/dx, explain how to derive the advection-diffusion equation (the 1-D version is fine).