Ideal Gas Molecules
Gbogbo ọrọ náà
A sealed can of gas looks completely still, yet inside it billions of molecules are hurtling about at hundreds of metres per second, hammering the walls without pause. That relentless bombardment is what we measure as pressure.
In this lesson you will use the moving-particle picture to explain how a gas pushes on its container, meet absolute zero and the kelvin scale, and work out what happens to the pressure of a fixed amount of gas when you squeeze it or heat it.
Ebumnobi
- Explain how molecules in a gas have random motion and that they exert a force and hence a pressure on the walls of a container
- Understand why there is an absolute zero of temperature which is -273 degrees Celsius
- Describe the Kelvin scale of temperature and be able to convert between the Kelvin and Celsius scales
- Understand why an increase in temperature results in an increase in the average speed of gas molecules
- Know that the Kelvin temperature of a gas is proportional to the average kinetic energy of its molecules
- Explain, for a fixed amount of gas, the qualitative relationship between pressure and volume at constant temperature, and pressure and Kelvin temperature at constant volume
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Ideal Gas Molecules. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Absolute zero is a temperature of: A) 0 degrees C B) -100 degrees C C) -273 degrees C D) 273 degrees C Answer: C
- A temperature of 127 degrees C is equal to: A) 127 K B) 273 K C) 400 K D) -146 K Answer: C
- The pressure of a gas is caused by: A) Molecules expanding when heated B) Molecules colliding with the container walls C) Molecules attracting each other D) The weight of the molecules only Answer: B
- A fixed mass of gas is compressed to half its volume at constant temperature. The pressure: A) Halves B) Stays the same C) Doubles D) Quadruples Answer: C
- The kelvin temperature of a gas is proportional to the: A) Total mass of the molecules B) Volume of the container C) Average kinetic energy of the molecules D) Number of molecules Answer: C
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
-
Akụkụ akwụkwọ
Temperature and Thermal Energy
Explain that temperature is a measure of internal kinetic energy
"Physics: Temperature and Thermal Energy" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/physics/pages/11-1-temperature-and-thermal-energy. Access for free at https://openstax.org/books/physics/pages/1-introduction
-
Akụkụ akwụkwọ
Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas Law
Identify the mathematical relationships between the various properties of gases
"Chemistry: Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas Law" 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/9-2-relating-pressure-volume-amount-and-temperature-the-ideal-gas-law. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Ideal Gas Molecules? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
Budata Ngwa Ahụ Na Google Playstore
Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
