Diffusion
Akopọ
Open a bottle of perfume at one side of a room and, a little later, someone on the far side can smell it. No one carried it across; the scent spread by itself. This silent spreading is diffusion, and it is direct evidence that particles are always on the move.
In this lesson you will learn what diffusion is, why it happens, and how the kinetic particle theory explains it. You will also see why gases diffuse faster than liquids, and why lighter particles diffuse faster than heavier ones at the same temperature.
Awọn Afojusun
- Describe and explain diffusion in terms of kinetic particle theory.
- [Supplement] Describe and explain the effect of relative molecular mass on the rate of diffusion of gases.
Ẹ̀kọ́ Ohùn
Gbọ́ ẹ̀kọ́ yìí nínú áàpù
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Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Diffusion. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Diffusion is the spreading of particles from a region of: A. Low to high concentration B. High to low concentration C. Solid to liquid D. Cold to hot Answer: B
- Diffusion happens because particles are: A. Stationary B. In constant random motion C. Always charged D. Bonded tightly Answer: B
- In which state does diffusion take place fastest? A. Solid B. Liquid C. Gas D. It is the same in all Answer: C
- At the same temperature, which particles diffuse fastest? A. The heaviest B. The lightest C. The largest D. The most charged Answer: B
- Why does a smell spread across a still room? A. The air is blown across B. The particles move randomly and spread out C. The smell dissolves D. The particles are stirred Answer: B
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
Effusion and Diffusion of Gases
Define and explain effusion and diffusion
"Chemistry: Effusion and Diffusion of Gases" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/9-4-effusion-and-diffusion-of-gases. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
Àwọn àjọ mìíràn ló tẹ̀ wọ́n jáde lábẹ́ ìwé àṣẹ ṣíṣí, a sì dá wọn lọ́lá bí wọ́n ṣe béèrè. Àwọn ìjápọ̀ ń ṣí ojú òpó wọn.
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Diffusion? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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