Description : When water vapor rise from water into the air we call that?
Last Answer : Vaporisation, or evaporation.
Description : Why does atmospheric pressure decrease when the amount of water vapor in the air increases ?
Last Answer : As water vapor is lighter than air, the pressure in the atmosphere decreases as the amount of water vapor in the air increases. During cooking, water vapor is seen rising upwards. This indicates that ... of air decreases. So as the amount of water vapor in the air increases, the pressure decreases.
Description : What is the effect of charge if there is water vapor in the air ?
Last Answer : If there is water vapor in the air, the effect of charge is lost.
Description : What is a comparison between the actual amount of water vapor in the air and the amount that it could old if it were saturated is called?
Last Answer : Need answer
Description : When the air is filled to capacity with water vapor it is to be said what?
Last Answer : saturated
Description : How many grams of water vapor are required to saturate a kilogram of air at a temperature of -20 degrees Celsius?
Last Answer : What is the answer ?
Description : Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is (A) 4 (B) 3 (C) 2 (D) 1
Last Answer : (A) 4
Description : With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature). (A) Increases (B) Remains unchanged (C) Decreases (D) Decreases linearly
Last Answer : (A) Increases
Description : The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm2 /sec. (A) 0.25 (B) 2.5 (C) 1.25 (D) 0.0025
Last Answer : (A) 0.25
Description : Dew point of an air-water vapor mixture (A) Decreases with decrease in pressure (B) At constant humidity & total pressure is fixed (C) Corresponding to any point on the humidity chart is obtained by projecting a ... to the temperature axis and to the saturation curve (D) All 'a', 'b' & 'c'
Last Answer : (D) All 'a', 'b' & 'c'
Description : During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains ... pressure of water vapor (C) Relative humidity (D) None of these
Last Answer : (A) Wet bulb temperature
Description : Pick out the wrong statement (A) A horizontal line on the humidity chart indicates the temperature changes at constant molal humidity (B) When water is cooled from 80 to 70°C by exposure ... & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Last Answer : (D) Relative saturation of unsaturated mixture of water vapor & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Description : Water entrained by circulating air in cooling towers is termed as (A) Drift (B) Blow down (C) Vapor load (D) None of these
Last Answer : (A) Drift
Description : The blueness of the sky is mainly due to -------? A. The scattering of sunlight by air molecules (Answer) B. The presence of water vapor C. Absorption of blue light by the air D. Emission of blue light by the atmosphere
Last Answer : A. The scattering of sunlight by air molecules (Answer)
Description : Which of these is an output of a ‘Furnace’? a. Fuel gas b. Cool Air c. Flue gases d. Water Vapor
Last Answer : c. Flue gases
Description : On a day when the partial pressure of water vapor remains constant, what happens as the temperature rises? a. the relative humidity increases b. the relative humidity decreases c. the relative humidity remains constant d. the air would eventually become saturated
Last Answer : the relative humidity decreases
Description : When dry ice is exposed to the air it changes to a vapor this a example of?
Last Answer : sublimation
Description : If air (a non-condensing gas) is present in a condensing vapor stream, it will __________ the condensation rate of vapor. (A) Increase (B) Decrease (C) Not affect (D) Increase the condensing film co-efficient as well as
Last Answer : (B) Decrease
Description : Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for ... a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature
Last Answer : (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs
Description : TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. (A) 5 (B) 100 (C) 1000 (D) 2000
Last Answer : (A) 5
Description : Out of the following refrigeration cycles, which one has maximum COP? (A) Air cycle (B) Carnot cycle (C) Ordinary vapor compression cycle (D) Vapor compression with a reversible expansion engin
Last Answer : (B) Carnot cycle
Description : A 0.064 kg of octane vapor (MW = 114) is mixed with0.91 kg of air (MW = 29.0) in the manifold of an Engine. The total pressure in the manifold is 86.1 kPa, and a temperature is 290 K. assume octane behaves ideally. What is ... of the air in the mixture in KPa? a. 46.8 b. 48.6 c. 84.6 d. 64.8
Last Answer : 84.6
Description : At a constant pressure, hot air than cold air (a) is more dense (b) is less dense (c) has more vapor (d) has less vapor
Last Answer : (b) is less dense
Description : What is the name of the process where plants release water vapor through their leaves?
Last Answer : A: Transpiration.
Description : Why is there a concentration of water vapor and Venus is atmosphere around the Terra Aphrodite Mountains region?
Last Answer : Meant say “Why is the there a large concentration of water vapor in Venus’ atmosphere around…”. Typo due to text speak
Description : How is water vapor getting into this process plumbing?
Last Answer : answer:May not be an answer, but 10 psi is less than ambient. Was the leak test for a vacuum or for positive pressure? If it is a vacuum leak it would bring in moisture.
Description : What is it about Chinese "Hot Mustard" that gives you that "gasolene vapor" effect that makes your eyes water and sinuses clear up?
Last Answer : answer:It’s a horseradish based heat (as opposed to capsaicin). It’s what gives wasabi it’s kick. (That rush makes my scalp crawl.) http://en.wikipedia.org/wiki/Wasabi
Description : How can there be clouds in winter when it is too cold for water to stay a vapor? -Geography
Last Answer : First of all, clouds are never made out of water vapour. Water vapor is invisible because its molecules are too far apart to optically scatter light. Whenever you see steam, mist, fog, or clouds, ... there are still often layers of atmosphere higher up that are warm enough for water to stay liquid.
Description : Clouds are just water vapor, so why do they move? -Geography
Last Answer : Clouds are not water vapor. Water vapor is the gas state of H2O and is invisible. The air around you on a humid summer day is chock full of water vapor, but you don't see any of ... drops as clear. Returning back the original question, clouds can move because wind can blow water droplets around.
Description : How much energy is released when 6.0 g of water is condensed from water vapor?
Last Answer : 6.0 g 1 mol/18.02 g 40.65 kJ/mol
Description : What is the relation of pressure with water vapor ?
Last Answer : The deep relationship of pressure with water vapor. When water is in the form of water vapor, the value of the intermolecular ball is very low. However, if the pressure increases, it increases.
Description : When water is heated it turns into water vapor ' What kind of change is it ?
Last Answer : When water is heated it turns into water vapor ' This is a physical change.
Description : What is the amount of water vapor in the atmosphere ?
Last Answer : The amount of water vapor in the atmosphere is 1 percent.
Description : When is the amount of water vapor low ?
Last Answer : The amount of water vapor is less in winter.
Description : Which element absorbs water vapor ?
Last Answer : : The solid absorbs the main water vapor
Description : What type of weather is most likely expected in a location which has a very high amount of water vapor in the atmosphere?
Description : Is the correct equation for the reaction below. One molecule of propane gas reacts with five molecules of oxygen gas to form three molecules of carbon-dioxide gas and four molecules of water vapor?
Last Answer : Yes, it is correct.C3H8 + 5 O2 = 3 CO2 + 4 H2O
Description : In what form do Water vapor droplets form clouds and Earth's gravity pulls the moisture to the surface?
Last Answer : The moisture drops to the earth as some form of precipitation(rain, snow, sleet, hail).
Description : What is the answer for the process by water on earths surface changes from liquid to water vapor?
Last Answer : transpiration,i think
Description : What is the process in which water vapor becomes a cloud?
Last Answer : The process is known as the water cycle, and the water becoming vapour to form clouds is due to evaporation.
Description : Why do scientists look for water vapor ozone or oxygen in a plants atmosphere?
Last Answer : Because they are interested in whether water vapor, ozone oroxygen in a plants atmosphere are there.
Description : What is. One molecule of propane gas reacts with five molecules of oxygen gas to form three molecules of carbon-dioxide gas and four molecules of water vapor.?
Last Answer : Propane gas is CH3CH2CH3Oxygen gas is O2Carbon dioxide gas is CO2Water vapor is H2OCH3CH2CH3(g) + 5O2(g) ==> 3CO2(g) + 4H2O(g)
Description : If the sample has 2 Grams of water vapor what would the relative humidity be?
Description : What does pollution and water vapor equal to?
Description : Why should barometric pressure be corrected for the vapor pressure of water?
Description : When water vapor forms liquid water droplets on a window in the early morning and example?
Description : What total water vapor released from soil and ocean surfaces as well as from plant leaves is called what?
Last Answer : Evapotranspiration
Description : What Water vapor droplets form clouds and Earth's gravity pulls the moisture to the surface in the form of?
Last Answer : rain
Description : Can I add vicks vapor to the water in my Dehumidifier?
Last Answer : No you put vicks into a humidifier.That way you add Vicks to your home's air.A Dehumidifier does the opposite and it would serve no purpose to put Vicks into it.