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Kann mir jemand meine Frage beantwortrn?

ByWaves08

Die SO2(g)+Cl2(g)->SO2Cl2-Reaktion wird in einem 5-Liter-Behälter durchgeführt, in dem 10 mol Cl2 und 5 mol SO2Cl2 hinzugefügt wurden. Das Gleichgewicht wurde erreicht, wenn 20 Prozent des in den Behälter gegebenen Substrates wirkten. Finden Sie die Konzentrationen im Gleichgewicht.  (Die Anfangskonzentrationen sind SO2 = 1 M, während Cl2 = 0,5 M, aber wie finde ich heraus, welche der…

Warum riechen schlecht gewordene Bananen nicht?

ByMondmara

Hallo, warum riechen eigentlich schlecht gewordene Früchte wie Äpfel oder Ananas so ekelhaft, während Bananen eher neutral bleiben? Ich habe hier eine alte Banane gefunden, die fast komplett schwarz ist, aber dennoch nicht so komisch riecht wie andere Früchte. Hat das irgendwie mit Chemie zu tun, dass sich da verschiedene Stoffe bilden?

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myotis
myotis
2 years ago

Why would that be?

Air has 21% oxygen, temperature-independent…

You just notice the warmth when it’s cold…

One effect is the stronger rise of the fire in the colder environment, which slows down oxygen-containing air faster and thus stimulates the fire…

Outside defined environments such as wood stoves etc. means cool i. d. R. but also damper, which obstructs fire more… – so there are forest fires rather in summer than in winter…

…and then burns better?

3
Callidus89
Callidus89
2 years ago

I was spontaneously told from two things:

  1. Cooler air has a higher oxygen content
  2. The greater temperature difference between cold air and hot combustion gases ensures a better thermal system, so that an intensive air train is created and therefore even more oxygen is present in the wood in a shorter time (i.e. more power).
2
myotis
myotis
2 years ago
Reply to  Callidus89

The temperature-dependent oxygen content applies to water, in the air are other factors such as plant density, day/night, etc. more important but ultimately – on the topic burns well – not relevant!

See https://www.swr.de/know/1000 responses/ist-im-winter-weniger-oxygen-in-der-luft-100.html

0
Callidus89
Callidus89
2 years ago
Reply to  myotis

The temperature-dependent oxygen content applies to water

I didn’t mean the solubility, etc. I mean, cool air is denser, so more mass of oxygen is present per m3 of air. Talking about “content” was therefore not correct. I don’t assess whether this has a significant effect.

0
myotis
myotis
2 years ago

After https://de.wikipedia.org/wiki/air density#/search#temperature dependence the density at 10 degrees (“cooling”) with 1,2466 kg/m3 is only slightly greater than 20 degrees with 1,2041 kg/m3…

These are at 21% oxygen content, which is then 262 instead of 253 mg oxygen per liter of air = I doubt strongly that with all the many variable, this also has only an appreciable effect…

The stronger chimney effect in cold room is much more noticeable in IMHO…

1
Jikaya
Jikaya
2 years ago

Due to the oxygen content of the in colder environments is higher than in warmer.

1
myotis
myotis
2 years ago
Reply to  Jikaya

The temperature-dependent oxygen content applies to water, in the air are other factors such as plant density, day/night, etc. more important but ultimately – on the topic burns well – not relevant!

See https://www.swr.de/know/1000 responses/ist-im-winter-weniger-oxygen-in-der-luft-100.html

0