Question

What is 'Fusion' and 'Diffusion' ? And what is the difference between them ?

Answer 1

Fusion - It is the process in which a solid changes into liquid. In simpler terms, fusion refers to the process of melting.

Diffusion - It is the intermixing of particles of two different types on their own.

Answer 2

DEFINITION OF DIFFUSION

diffusion is a physical and chemical property or behaviour, depending on the term

DEFINITION OF FUSION

Fusion is (for physics) combining atoms (two H into one He, get some bits of energy from the slightly lower mass of He vs 2H turning into E per E=mc² ..