Question

What is the primary cause of diffusion? some substances can dissolve in solvents heat added to a substance random internal motion of atoms and molecules attraction of opposite atomic charges

Answer 1

random internal of motion of atoms and molecules

Step-by-step explanation:

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Answer 2

random internal motion of atoms and molecule

Step-by-step explanation:

The primary cause of diffusion is the random internal motion of atoms and molecules.

Randomness of atoms and molecules results in diffusion.

• Diffusion is the movement of particles from a region of high concentration to that of lower concentration.
• Substances often tend to spread out over the concentration gradient.
• Therefore, they have this propensity to be randomized.