Vapour Pressure| Boiling| Atmospheric P

AI Thread Summary
Boiling occurs when the vapor pressure of a liquid equals the atmospheric pressure, allowing vaporization to happen not just at the surface but also throughout the liquid. This process involves the formation of bubbles within the liquid, which can only happen when the vapor pressure meets or exceeds the surrounding pressure. The relationship between vapor pressure and atmospheric pressure is crucial in understanding boiling, as it indicates the conditions under which a liquid transitions to gas.
Epsillon
Messages
69
Reaction score
1
Ok I do not get WHY an object boils when atmospheric pressure is equal to Vapour pressure.

Can anyone explain this? In my textbook it doesent explain it at all.
 
Chemistry news on Phys.org
What is definition of boiling?
 
When atmospheric pressure= vapour pressure. and particles that are not neccessarly on surface are forming bubles and vaporizing
 
Epsillon said:
particles that are not neccessarly on surface are forming bubles and vaporizing

That's the most important part of it - boiling is vaporization that takes place not only on the surface, but also inside of the solution. That can take place ONLY when the vapor pressure is identical with or larger than the pressure of the surroundings. To some extent vapor pressure = atmospheric pressure is only a conclusion, not part of the definition.
 

Thread 'Solubility of MgSO47H2O in water'

It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...
View full post »

Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
View full post »

Similar threads

Vapor pressure -- How does water still boil at 100°C in an open pot?
Replies
35
Views
5K
Stream distillation-purification of organic compounds
Replies
3
Views
2K
Is the Triple Point of Water Affected by Atmospheric Pressure?
Replies
6
Views
2K
Why does adding solute particles decrease the freezing point?
3
Replies
115
Views
10K
Phase diagrams for fractional distillation
Replies
6
Views
3K
Does pressure affect equilibrium vapor pressure (or RH)?
Replies
8
Views
3K
Understanding Vapour Pressure & Temperature Difference
Replies
18
Views
2K
Understanding the Role of Calibration in Vapour Pressure Determination
Replies
1
Views
2K
Vapour pressure of water vapour in air
Replies
9
Views
2K
What Factors Influence Vapour Pressure and Molecular Escape into the Gas Phase?
Replies
9
Views
3K

Hot Threads

Recent Insights

Back
Top