two differences between boiling and evaporation?

Answer 1

Evaporation is a more general term. Evaporation means to change of a liquid into a vapor (gas).
It does not matter what the vapor pressure of the substance is. Water at 25 C has a vapor
pressure of about 25mm Hg. If a stream of dry air passes over the surface of the water it will
evaporate. Eventually there will be no liquid water remaining. On the other hand, "boiling"
usually refers to the temperature where the vapor pressure is 1 atmosphere = 760 mm Hg. In the
case of water this temperature is 100 C.

Answer 2

Given a pressure, a liquid is a liquid between two temperatures namely; the melting point and boiling point.

Below the melting point (at a particular pressure) the liquid is always a solid and above the boiling point a liquid is always a gas.

Between these two limits, the liquid is always being converted into gas and vice versa.

If the liquid is converted into gas in these temperatures, we call it evaporation.

Thus evaporation takes place at any temperature (between the two limiting temperatures)

Beyond boiling temperature as the liquid cannot exist in the form of liquid, the temperature (boiling point) does not raise till all liquids are converted into gas.

Thus there is no difference between evaporation and boiling except that the boiling temperature is the maximum limit for evaporation.

Answer 3

this is a easy question to answer. Boiling and evaportaion is two different things. Boiling a liquid results in the evaportaion of the liquid, which creates vapor (gas)

ie. Boiling H2O (water) produces (H2O gas) =)

Difference:
Boiling is a form of heating, evaportaion is not

Vapor from evaporation is a physical thing (a noun), and boiling is not something that is physical, it is a (verb)

Water as a gas or a liquid as the same chemical formula but different structure =) solid vs liquid vs gas

Boiling will always result in evaporation, but evaportaion is not always a product of boiling. Steam can be produced from microwaves, the Hot sun, Dry ice, change in pressure.

Hope this helps

Yeah also you cant boil a gas, but u can boil a liquid =-)

Answer 4

1. Spelling
2. Boiling = Liquid, Evaporation = Gas

Answer 5

Believe it or not they're two differant things, boiling is the action, and evaporation is the chemical reaction that must take place to change from a solid to a gas. Evaporation can take place without turning to a liquid first......Dry Ice.

Answer 6

Shelina i'll give u the right ans. 1st of all evaporation takes place at all temp. but boiling at a fixed temp. which is diff. for diff. liquids. Evaporation leads to cooling whereas boiling doesn't( this is bcoz latent heat is absorbed while evaporation.That's y u feel cool after sweating).
By the way,which fool said that evaporation is 4 gases & boiling 4 liquids. Plz don't misguide othrs.

Answer 7

1. First difference: BOILING is when you start the water and sit down and watch 7 minutes of "CSI" vs EVAPORATION when you sit down and watch 45 minutes of "CSI" and realize that the water is gone! (evaporated)...

2. Boiling is when you put the Rice a Roni in at boiling point and set it down to 2 or 3 level on the stove and check it every 5 minutes. Evaporation is when you come back too late and you only have 1/3 of a cup of rice left to eat... (cause the rest is burnt to the bottom)..

:)

Answer 8

Evaporation occurs when atoms or molecules in the liquid state (or solid state if the substance is sublime) gets enough energy to change into a gaseous phase (the opposite is called condensation).

Boiling is when a liquid is evaporated quickly. It occurs when a liquid is heated at a high temperature such that the vapour pressure is higher than it's surrounding pressure (such as air pressure).

Evaporation requires high energy for the molecules to change it's phase.
Boiling requires a high vapour pressure.

I could go on, but encyclopedias exists for those. :-)

Answer 9

boiling is the process which occures when the vapour pressure of the liquid becomes equal to the atmospheric pressure and the temp constantly increases and becomes constant at which boiling starts and is known as boiling point of that substance; whereas evaporation is the process that takes place after boiling and the temperature during this process doesn't exceed the boiling point. it doesn't mean the heat supply is stopped, heat given after boilint temperature is reached is used to change the state of matter from liquid to gaseous, the amount of heat absorbed after boiling during evaporation is known as latent heat!

Answer 10

Boiling happens when it reaches a certain temperature and an atom gains enough energy to become a gas. Evaporation happens when the atoms just escape cos liquid is not like solid, clustered together tightly.