Which of the following equation is related to Fick’s first law of diffusion?

Which of the following equation is related to Fick’s first law of diffusion? Correct Answer J = D*(∂C/∂X)

This equation is identical to that proposed by Fick in 1855 and is usually known as Fick’s first law of diffusion. D is known as the intrinsic diffusivity or the diffusion coefficient. The partial derivative has been used to indicate that the concentration gradient can change with time.
Bissoy MCQ

Related Questions

Consider the following statements regarding the importance of diffusion and choose the correct answer:
1. The exchange of gases takes place by the principle of dependent diffusion
2. The process of diffusion is involved in transpiration of water vapours
3. The ions are absorbed by the simple diffusion during passive salt uptake
4. Diffusion is an effective means of transport of substances over a very short distance and helps in the translocation of food materials
In a gas mixture of hydrogen and oxygen, steady state equimolar counter diffusion is occurring at a total pressure of 100 kPa and temperature of 20°C. If the partial pressures of oxygen at two planes 0.01 m apart, and perpendicular to the direction of diffusion are 15 kPa and 5 kPa, respectively and the mass diffusion flux of oxygen in the mixture is 1.6 * 10–5 kmol/m2.sec, calculate the molecular diffusivity for the system. For equimolar counter current diffusion:
What is the unit of diffusion flux “J” in the Fick’s law equation?
Which of the following is correct representation of Fick’s law of diffusion?
If C is the concentration of the diffusing species at distance x from the source and time t, then according to Fick’s second law (assuming diffusion coefficient, D is constant):
For one dimensional diffusion in the radial direction only for cylinder and sphere, the fick’s second law becomes:
Fick’s second law is applicable to steady –state diffusion?
Fick’s law is not applicable for describing the diffusion of solutes molecules in a solid medium.
Fick's second law of diffusion is stated as:
Which of the following operator is used and on which side of Fick’s second law’s equation?