A message from our CEO about the future of Stack Overflow and Stack Exchange. Read now.

Questions tagged [boiling-point]

The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid

Filter by
Sorted by
Tagged with
-1
votes
2answers
2k views

boiling point and distillation relation

i need help with the fractional distillation method of a couple of substances at least more than two substances , just like air actually what am i looking for is that why do substances in air with a ...
-1
votes
1answer
27 views

The relationship between the temperatures at different times and pressures at different times is? [closed]

At the instant the boiling point is reached, the vapour pressure of the solution should be equal to atm. pressure. And since the boiling is continued the pressure will keep on increasing. Thus the ...
-1
votes
1answer
329 views

How long do I have to burn a carbon steel pan laced with flaxseed oil?

I've a carbon steel pan that's 26 cm in diameter, about 2 mm thick, but I doubt that it matters. I haven't been able to find a reliable resource that would tell me the smoke point of flaxseed oil, but ...
-1
votes
1answer
116 views

Is sodium hypochlorite 100% concentrate possible?

Popular bleaching brands like Clorox contain liquid sodium hypochlorite in small concentrations, ranging from 5-12.5% (is this a mass/volume, mass/mass, or volume/volume concentrate?). Is it possible ...
-1
votes
2answers
2k views

Which solution has higher boiling point?

Between a 2% (w/v) aqueous solutions of $\ce{NaCl}$ and $\ce{RbCl}$, which will have a higher boiling point. Here there are two competing factors. First there's the fact that $\ce{NaCl}$ has a higher ...
-1
votes
1answer
1k views

How can you boil milk without causing it to foam and overflow?

I have looked at this Why does milk overflow... But I've not found a solution to prevent the milk overflowing. I remember reading (cannot recall the source) that in industries where milk is boiled a ...
-1
votes
1answer
970 views

Calculating Boiling Point of solution

I wish to calculate the boiling point of the following solution. (w/w) 78.8% Glycerol, 11.6% Propylene Glycol, 8.3% Water, 1.2% Nicotine (molar fraction) 0.5790 Glycerol, 0.1037 Propylene Glycol, ...
-1
votes
1answer
95 views

When boiling a liquid, how vapour pressure and ambient pressure get equal? [duplicate]

When boiling a liquid, how vapour pressure and ambient pressure get equal? As vapour pressure will increase, it will lead to increase in ambient pressure also. let, Initially there would be some ...
-1
votes
2answers
585 views

Ordering compounds by boiling points

Here is a MC question from my chemistry professor: What is the correct order of boiling points for molecules: $\ce{CO2}$, $\ce{LiOH}$, $\ce{CH3OH}$, $\ce{CH2O}$? I am mainly confused about ...
-2
votes
2answers
120 views

Solid with Boiling Point less than 100 °C [closed]

For an experiment I require a substance which is a solid at room temperature and boils at a temperature lower than 100 °C. Also, this solid should preferably be soluble in water. Are there any such ...
-2
votes
1answer
196 views

Is 99% Isopropyl Alcohol sold in stores really 99%?

My understanding is that an azeotropic mixture of isopropanol and water is 91%. This makes sense as to why there are so many brands of rubbing alcohol sold at 91%. There are also some sold as 99%, ...
-2
votes
3answers
1k views

Why does increase in pressure cause a increase in boiling point [closed]

When we increase the atomospheric pressure pressure above the solution , the boiling point of a solution increases. Why does this happen?
-2
votes
1answer
20k views

How to determine the order of boiling points and solubilities for (chloro-)alkanes, ethers, aldehydes, and alcohols?

How to determine the order of boiling points and solubilities for (chloro-)alkanes, ethers, aldehydes, and alcohols? What rules can be applied to make these choices? Take for example the following ...
-2
votes
1answer
354 views

Which chemical could be used to decrease water boiling point to a minimum possible level without heating it [closed]

I aim to decrease boiling point of water that will be used to generate steam. I wonder maybe there is an opportunity to add a substance that will help to decrease boiling point of water without ...
-2
votes
0answers
25 views

Why is the boiling point of isopropylamine lower than that of N-methylethanimine [closed]

What intermolecular interactions are there in N-methylethanimine that would be stronger than the hydrogen bonds in isopropylamine and why are they stronger?
-2
votes
2answers
70 views

Can somebody help me understand this sentence?

"The molar enthalpy of vaporisation of a liquid is the enthalpy change when one mole of the liquid changes into one mole of its gas at the boiling temperature." The part which i am not sure of is the ...
-3
votes
1answer
2k views

General organic chemistry [closed]

What is the correct order of boiling points of the following compounds ? 1) butanol 2)butanal 3)butanoic acid