Question

Give reason(s) for the following:
(a) Rubbing your hands together make them warmer.
(b) Gases diffuse readily.​

Answer 1

Answer:

(a) When you rub your hands together, the action of scraping the surface of your skin back and forth against each other causes the molecules in your skin to move a little faster. The faster that molecules move, the higher the temperature. So the friction of rubbing your hands together makes them feel warmer.

(b) The energy in gas molecules is very high compared to liquids and solids. As these particles have high energy and a lot of space in which to move, they diffuse comparitively quickly. Answer: ... Hence gases diffuse rapidly

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Answer 2

Explanation:

a)the action of scraping the surface of your skin back and forth against other causes the molecule in your skin to move a little faster. the faster that molecules move, the higher the temperature. so the friction of rubbing your hands together makes them feel warmer.

b)the kinetic energy of the particles is very high in the vapour state these particles readily mix up with the particles of air. gases intermoleculed space is very high as compared to solids and liquids. due to this reason thr gases moves at faster rate hence making, diffusion rate faster.

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