ii) At Earth's atmospheric pressure the energy required to provoke evaporation is always less than the energy taken from the local environment when
evaporation occurs so we need to analyse exactly where the deficit can be provided from.
We have already determined that at Earth's current atmospheric pressure there is always a net deficit to the local environment when
evaporation occurs.
When
evaporation occurs more energy is drawn from the surroundings than is added to the molecule by the photon.
i)
Evaporation occurs primarily because of pressure and density differentials between water and air.
Well I started off by pointing out that under current atmospheric pressure and with no temperature differential
evaporation occurs routinely with no «provocation».
If our idealized reservoir is «U» - shaped (not «V» - shaped) then the surface area remains constant, irrespective of the water level, and so
the evaporation occurs at a constant (zero - order flux) vs. (dry) temperature.
It is correct that once accelerated
evaporation occurs a lot of the DLR is used to cover the extra energy deficit.
In fact
evaporation occurs spontaneously when an air surface that is not saturated is above water.
You can't reduce surface pressure when
evaporation occurs then reduce it again when condensation occurs.
Stephen said, «What makes air rise from the surface when
evaporation occurs is increased pressure horizontally which increases buoyancy of the less dense parcel by forcing it upward vertically for a reduction of pressure at the base of the column.»
What makes air rise from the surface when
evaporation occurs is increased pressure horizontally which increases buoyancy of the less dense parcel by forcing it upward vertically for a reduction of pressure at the base of the column.
One interesting question is to what extent they fall in the rising column and to what extent the end up outside that in drier air where
evaporation occurs rapidly and changes the properties of adjoining air.
As water warms more
evaporation occurs carrying energy higher in the troposphere where it can be lost more easily — but there are considerations of wind speed and atmospheric humidity.
With a couple of years of low sea surface temperature at the equator (where the bulk of
the evaporation occurs) specific humidity has fallen strongly.
«86 % of the global
evaporation occurs from the oceans, reducing their temperature by evaporative cooling.
And Stefan, something tells me I should not engange stefan again, but you know that
evaporation occurs at a constant temperature, it removes heat but can proceed without lowering the temperature.
Higher temperatures mean more
evaporation occurs.
Evaporation occurs when water molecules use energy from the Sun to escape from a surface.
There is a very important phenomenon which occurs in the boundary layer of the surface of the water for
evaporation occurs, where water evaporates and the layer in the atmosphere.
Patrick Henry (2)--
Evaporation occurs at the surface.
In this lesson plan students will demonstrate that
evaporation occurs when molecules in a liquid...
Your students will demonstrate how
evaporation occurs when a liquid turns into a gas and how temperature affects the rate of evaporation.
The research team learned that the process of ice growth at the expense of liquid
evaporation occurs in about half of mixed - phase regimes, primarily in downdrafts.
2 — How
Evaporation occur?
Statistical variations in individual molecules» energies account for
evaporation occurring well below 100 deg C.
That would make ice cores a record of those specific locations rather than a broader measure of the sea where
the evaporation occurred.
Not exact matches
(From the Christian point of view (which in this coincides with the biological viewpoint logically carried to its extreme) the «gathering together» of the Spirit gradually accomplished in the course of the «coiling» of the Universe,
occurs in two tempos and by two stages — a by slow «
evaporation» (individual deaths); and simultaneously b by incorporation in the collective human organism («the mystic body») whose maturation will only be complete at the end of Time, through the Parousia.)
Some mothers find using some warmth prior to pumping works well (if using a wet heat source, make sure to dry well after removing it, if still wet,
evaporation will
occur, causing cooling which is counterproductive to the process.)
Heat loss can
occur for a newborn by escaping through the body surface, through
evaporation and by cooler surfaces or hands touching her skin.
The
evaporation of water that
occurs when it meets a hot surface is understood in continuum theory and in experimentation.
Though
evaporation of the solvent does
occur, the nanoelectrospray can maintain a stable film long enough for the structures to form.
The layered structure of corneocytes is crucial in controlling how much
evaporation and chemical adsorption
occurs through the skin.
That means that for the same amount of liquid, more heat transfer
occurs during the
evaporation of water compared with the alcohol.
The key to air conditioning is
evaporation: the cooling
occurs when a liquid absorbs energy from its surroundings and changes phase to evaporate as a gas.
Another process knows as a «runaway greenhouse»
occurs due to the increased greenhouse effect of water vapor in the lower atmosphere, which further drives
evaporation and more warming.
When droughts do
occur, they will be more intense than those in the past, because higher temperatures will lead to more
evaporation from soils and transpiration from plants.
Higher temperatures, on the other hand, increase
evaporation and can intensify droughts when they
occur, as can expansion of the subtropics, as discussed above.
When humidity is low,
evaporation increases, when humidity is high,
evaporation decreases and less cooling
occurs.
John Hughes Bennett, a nineteenth century Scottish physician who traveled the world studying the use of cod liver oil in medicine, wrote in his Treatise on Cod Liver Oil that excessive doses over extended periods of time could cause gastrointestinal problems, excessive menstrual bleeding, itchy skin eruptions and excessive
evaporation of water through the skin.55 The last three symptoms seem very much like the hormonal disruptions, hemorrhaging and skin problems known to
occur during arachidonic acid deficiency.
Evaporation will
occur when then sweat released from the body onto the surface of your skin.
• The greenhouse will help to reduce rainfall in some areas of the planet causing them to
occur at higher temperatures and higher
evaporation.
In order for your dog's body to cool itself appropriately during increased activity,
evaporation from the respiratory tree
occurs which quickly drops the body's water stores.
It prevents irritation and relieves dry eyes that
occur due to decreased tear production or increased tear
evaporation.
The excerpt I quoted says below windspeed that disrupts the skin layer, heat transfer
occurs by «molecular processes» — my guess would be that includes include both radiation and
evaporation — anyone know?
I haven't read the papers and don't know what is happening with salinity in the rest of the Atlantic, but looking at your map it
occurred to me that if there was increased freshwater in the Northern Ocean due to ice melting and increase salinity in the tropical Atlantic due to increased
evaporation, couldn't a mixing effect at the southern edge of the Northern ocean as tropical water is circulated north show similar results?
While the energy input allows more
evaporation to
occur, it's confusing the matter to say that this «cools» the surface, since the
evaporation is just helping to carry away the heat put in by the other terms.
The kinetic energy from the falling rain that
occurs after condensation then feeds the circular winds that in turn draw more heat from
evaporation etc. so as to form a positive feedback loop.
This slick can prevent a significant amount of
evaporation from
occurring.
This
occurs in a similar way as the earth's surface energy budget compensates for half its solar gain of 171 Wm - 2 by surface to air upward water vapor flux due to
evaporation.
More extra
evaporation would
occur in the hottest parts which are currently the dryest?