ALCANI Flashcards

1
Q

care alcani sunt lichizi?

A

de la n=5 la n=16 (inclusiv)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

care alcani sunt solizi?

A

peste n=17 (inclusiv)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

catalizatori pentru reactia de izomerizare

A

AlCl3/AlBr3 umed, la t joase: 50-100^
SAU zeoliti sintetici/naturali = silicati de aluminiu la 250-300^
Pt/Al2O3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

la ce temperaturi se descompun alcanii superiori

A

400-600^

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

ce se obtine din oxidarea incompleta a alcanilor (conversie)

A

gaz de apa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

ce alcani sunt folositi pentru incalzirea locuintelor

A

gazul metan, aragazul, butanul

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

din ce alcani este format aragazul

A

propan si butan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ce gaze sunt folosite pentru prepararea hranei

A

aragazul, gazul natural

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ce este puterea calorica

A

caldura degajata la arderea completa a 1kg/1m3 combustibil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

ce puteri calorice sunt intermediare, de la lemn la benzina?

A

carbune brun, antracit, cocs, gaz natural ( ma CAC Girlie )

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

la ce se foloseste negrul de fum

A

la fabricarea vopselelor si a anvelopelor de automobile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

gazul de balta se formeaza prin actiune aeroba sau anaeroba?

A

prin actiunea ANAEROBA a unor bacterii asupra resturilor animale si vegetale de pe fundul lacurilor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

care acizi se decarboxileaza mai usor?

A

cei nesaturati si cei 1,3-dicarboxilici

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

cine are densitate mai mare? alcanii sau cicloalcanii?

A

CICLOALCANII

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

cum au cicloalcanii punctele de fierbere fata de n-alcanii corespunzatori ?

A

MAI MARI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

arderea alcanilor este spontana?

A

nu, combustibilii trebuie incalziti

17
Q

ce este gazul natural

A

amestec metan etan propan

18
Q

ce fel de oxidare e amonoxidarea metanului

A

totala

19
Q

cate calorii are 1 kcal

A

1000 calorii