Diffusion
Muhtasari
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.
Malengo
- 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.
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Diffusion. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- 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
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Diffusion? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
