Question

Which of the following is not an example of diffusion?
(a) Pressing sponge to expel trapped air
(b) Smell of hot cooked food reaching us in seconds
(c) Dissolving of atmospheric gases in water
(d) Spreading of ink in a cup of water.

Answer 1

Answer:

i think you can search in dictionary

Answer 2

Answer:

Diffusion is the process by which particles move from an area of high concentration to an area of low concentration, resulting in the equal distribution of the particles in the given space. All the given examples represent diffusion. None of them is an exception.

Explanation:

(a) Pressing a sponge to expel trapped air is an example of diffusion. The air particles inside the sponge have a higher concentration than those outside the sponge. When the sponge is pressed, the air particles move from an area of high concentration to an area of low concentration, resulting in the expulsion of trapped air.

(b) The smell of hot cooked food reaching us in seconds is an example of diffusion. The odor molecules move from the hot food to the surrounding air, which contains fewer odor molecules until they are evenly distributed in the given space.

(c) Dissolving of atmospheric gases in water is an example of diffusion. The atmospheric gases have a higher concentration in the air than in the water. As a result, they diffuse from the air to the water until their concentrations become equal.

(d) Spreading of ink in a cup of water is also an example of diffusion. The ink particles move from an area of high concentration in the ink to an area of low concentration in the water, resulting in the even distribution of ink particles throughout the water.

To know more about the concept please go through the links:

https://brainly.in/question/6407468

https://brainly.in/question/5115442

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