Which of the following law is used to non-steady state diffusion?

1.	Which of the following law is used to non-steady state diffusion?
A.	Fick‚Äö√Ñ√∂‚àö√ë‚àö¬•s first law
B.	Fick‚Äö√Ñ√∂‚àö√ë‚àö¬•s second law
C.	Bragg‚Äö√Ñ√∂‚àö√ë‚àö¬•s law
D.	Charles‚Äö√Ñ√∂‚àö√ë‚àö¬•s law
Answer» D. Charles‚Äö√Ñ√∂‚àö√ë‚àö¬•s law

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