แอลคีน
ɛɛn-kiinMeaning
1NounC1
alkene; olefin
An unsaturated hydrocarbon containing a carbon–carbon double bond. Open-chain alkenes with exactly one double bond have the general formula CnH2n.
Examples
เอทิลีนee-tí-liinเอทิลีนee-tí-liinethylene (C2H4; plant hormone; industrial gas)เป็นbpenเป็นbpen1to be (identity/category/state)2to become3[to] know how; be able to (skill)4alive; living5[to] have; suffer from; be in (a condition)แอลคีนɛɛn-kiinแอลคีนɛɛn-kiinalkene; olefinชนิดหนึ่งchá-nít-nʉ̀ngชนิดหนึ่งchá-nít-nʉ̀nga certain kind; one kind (of)ที่tîiที่tîi1place; spot; seat; space2at; in; to (a place)3classifier: places; seats; individual servings4that/which/who (relative marker)5when; the time that (time marker)6ordinal markerใช้cháiใช้chái1[to] use; employ2[to] spend (money); pay; expend3[to] require; take (time/effort/amount)4[to] tell [sb] to do [sth]; assign; orderทำtamทำtam1[to] do; make2[to] act; behave3[to] cook; prepare food4[to] cause; makeพลาสติกpláat-sà-dtìkพลาสติกpláat-sà-dtìk1plastic (material)2plastic (made of plastic)
Ethylene is a type of alkene that is used to make plastic.
3 more examplesShow less
นักเรียนnák-riianเคมีkee-miiเรียนรู้riian-rúuว่าwâaแอลคีนɛɛn-kiinเป็นbpenไฮโดรคาร์บอนhai-droo-kaa-bɔɔnไม่mâiอิ่มตัวìm-dtuuaเพราะprɔ́มีmiiพันธะคู่pan-tá-kûuอยู่ในyùu-naiโมเลกุลmoo-lee-gun
Chemistry students learn that alkenes are unsaturated hydrocarbons because they contain a double bond in the molecule.
ปฏิกิริยาbpà-dtì-gì-rí-yaaการเติมgaan-dtəəmไฮโดรเจนhai-droo-jeenสามารถsǎa-mâatเปลี่ยนbplìianแอลคีนɛɛn-kiinให้hâiกลายเป็นglaai-bpenแอลเคนɛɛn-keenได้dâaiโดยdooiการทำลายgaan-tam-laaiพันธะคู่pan-tá-kûu
A hydrogenation reaction can convert an alkene into an alkane by breaking the double bond.
เราraoสามารถsǎa-mâatแยกแยะyɛ̂ɛk-yɛ́แอลคีนɛɛn-kiinออกจากɔ̀ɔk-jàakแอลเคนɛɛn-keenได้dâaiโดยdooiใช้cháiสารละลายsǎan-lá-laaiโพแทสเซียมpoo-tɛ̂ɛt-siiamเปอร์bpəəแมงmɛɛngกาgaaเนตnèetซึ่งsʉ̂ngแอลคีนɛɛn-kiinจะjàทำปฏิกิริยาtam-bpà-dtì-gì-rí-yaaและlɛ́ทำให้tam-hâiสีม่วงsǐi-mûuangจางลงjaang-long
We can distinguish an alkene from an alkane by using a potassium permanganate solution, with which the alkene will react and cause the purple color to fade.
Tones
See how the spelling sets each syllable's tone, step by step.
Why is แอลคีน said แอน-คีน?
ɛɛn-kiin
The tone rules below use the spoken syllables.
2 syllables · pick one to see its rule
How the tone is decided
- Consonant classMid class
- Tone markNo tone mark
- Syllable endingLive syllableEnds in -ล, a sonorant, so it is live.
Mid class consonants
กจฎฏดตบปอ
Result
Mid tone
ɛɛn
Level, in your normal speaking voice.
Mid class + No tone mark + Live syllable → Mid
Tone chart
Every class and spelling pattern, with this syllable outlined.
| Mid class | High class | Low class | |
|---|---|---|---|
| No mark + live | Mid | Rising | Mid |
| No mark + dead short | Low | Low | High |
| No mark + dead long | Low | Low | Falling |
| Mai ek | Low | Low | Falling |
| Mai tho | Falling | Falling | High |
| Mai tri | High | — | — |
| Mai chattawa | Rising | — | — |