In terms of particles how evaporation causes hot water to cool?

1 Answer

Answer :

For a molecule of water to change from a liquid to a gas requires it absorb heat, called the heat of vaporization. Evaporation is the conversion from a liquid (water) to a gas (water vapor), so each molecule that evaporates takes the heat of vaporization with it making the remaining water cooler.

Related questions

Description : The surface of water in a pond remains cool even on a hot day because 1. water evaporates at the surface and evaporation causes cooling 2. the heat absorbed at the surface is transmitted downwards 3. Water in contact with the bottom ... /are correct? (a) 1 only (b) 3 only (c) 1 and 3 (d) 1, 2 and 3

Last Answer : Ans:(a)

Description : The water in an open pond remains cool even in hot summer because (a) Of continuous evaporation of water (b) Water radiates heat more rapidly than the atmosphere (c) Water absorbs heat less rapidly than the atmosphere (d) Water absorbs heat more rapidly than the atmosphere

Last Answer : Ans:(c)

Description : Why do hot particles move faster than the cool gas particle?

Last Answer : Need answer

Description : During summer, we feel comfortable under a fan because it (a) throws cool air on us (b) sets the air in motion, thereby increasing the evaporation of sweat (c) produces convection currents (d) produces air which carries heat away from the body

Last Answer : Ans:(b)

Description : By which of the following methods could a cup of hot coffee lose heat if placed on a metal table in a room? (a) Conduction and radiation (b) Conduction and convection (c) Convection and radiation (d) Conduction, convection, radiation and evaporation

Last Answer : Ans:(d)

Description : Leidenfrost point is a term concerned with the (A) Condensation of the saturated vapor on a cold surface (B) Concentration of a corrosive solution by evaporation (C) Heat transfer between two highly viscous liquids (D) Boiling of a liquid on a hot surface

Last Answer : (D) Boiling of a liquid on a hot surface

Description : The specific terms used in phase transitions  a. melting  b. evaporation  c. freezing  d. sublimation

Last Answer : evaporation

Description : Define the terms-1) sublimation ii) evaporation

Last Answer : i) Sublimation: It is the process in which solid gets converted into vapour without formation of liquid and on cooling; the vapours get converted into solids.  ii) Evaporation: Evaporation may be defined as free escape of vapours from the surface of the liquid below its boiling point.

Description : State the significance of following terms : i) Hydrology ii) Surface run-off iii) Evaporation iv) Precipitation

Last Answer : (i) Hydrology: It may be defined as the science which deals with the depletion and replenishment of water resources. Hydrology deals with the occurrence and distribution of water over and under earth's ... types:  a) Liquid precipitation (Rainfall)  b) Solid precipitation (Snow, Hail) 

Description : The Symbolic meaning of Dust of Snow is-(a) Particles of snow (b) Cool weather (c) White mountains (d) Healing power of nature

Last Answer : (d) Healing power of nature

Description : Superconducting materials are being used in the Superconducting Super Collider to: w) cool the particles. x) minimize electrical power consumption. y) maximize the acceleration potentials. z) provide radiation shielding.

Last Answer : ANSWER: X -- MINIMIZE ELECTRICAL POWER CONSUMPTION.

Description : Mud houses are cooler in summers and wanner in winters as compared to brick houses because (1) mud is a good conductor (2) mud is a bad conductor (3) mud is a poor insulator (4) evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters

Last Answer : (2) mud is a bad conductor Explanation: The houses made of mud and thatched roofs are cool in summer and warm in winter as the thatched roof contains large amount of trapped air and also mud is ... . In summer, the outside heat cannot enter the house and in winter, inside heat cannot flow outside.

Description : Mud houses are cooler in summers and warmer in winters as compared to brick houses because (1) mud is a good conductor (2) mud is a bad conductor (3) mud is a poor insulator (4) evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters

Last Answer : mud is a bad conductor

Description : How do we get cool water from a clay water pot on hot sunny days?

Last Answer : A clay water pot, also known as an "earthenware pot" or "un glazed clay pot," is a traditional method for storing and cooling water on hot sunny days. The process works through a process ... the evaporation more efficient and should be covered to prevent debris and dust from getting in the water.

Description : If I fill a 5 Gallon glass water bottle with very hot water will it change the temperature in a cool room by a few degrees?

Last Answer : 5 gallons? that should radiate some heat at least. The water won’t stay hot for long though.

Description : Rajasthan receives very little rain because (a) it is too hot (b) there is no water available and thus the winds remain dry (c) the monsoons fail to reach this area (d) the winds do not come across any barrier to cause the necessary uplift to cool the winds

Last Answer : Ans: (d)

Description : Rajasthan revives very little rain because— (1) it is too hot (2) there is no water available and thus the winds remain dry (3) the monsoon fails to reach this area (4) the winds do not come across any barriers to cause the necessary uplift to cool the wind

Last Answer : (4) the winds do not come across any barriers to cause the necessary uplift to cool the wind Explanation: Rainfall decreases as winds move westwards up the Ganga Plains. Rajasthan ... range, the weather is characterized by relatively low wind velocity and high humidity with better rainfall.

Description : Why is the water in an open pond cool even on a hot summer day?

Last Answer : Answer: As the water evaporates from the open surface of a pond, heat is taken away in the process, leaving the surface cool.

Description : Water is not effective in extinguishing a fire caused by petrol because (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... 4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

Last Answer : water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

Description : How do camels cool themselves in hot weather?

Last Answer : A: Camels have several cooling mechanisms to cope with hot weather. They can sweat to dissipate heat, but their long hair often prevents the sweat from evaporating quickly. They also regulate their body temperature by seeking shade, panting, and reducing activity during the hottest parts of the day.

Description : How do camels cool themselves in hot temperatures?

Last Answer : A: Camels have several mechanisms to cool themselves in hot temperatures. They sweat very little, conserving body moisture. Their large surface area and thin skin allow for efficient heat dissipation, and they pant to cool down.

Description : How warm or hot does the weather need to be before wearing Daisy Duke or booty shorts is comfortable and not too cool?

Last Answer : I walk the shores of a huge lake every day. I’ve been seeing long sleeve sweaters with bikini bottoms at the volleyball courts for a week now. It’s topping out at 60 degrees. Direct sunshine feels great, but those girls are nuts.

Description : Does blowing on hot food really make it cool faster, and if so, why?

Last Answer : Depends on the density of the food. A piece of steamed cabbage held aloft with a fork, yes. A 4 inch deep bowl of boiling Oatmeal, no. lol Stirring AND blowing would be most effective. haha

Description : How to keep a room cool in hot-humid weather without air conditioning (science!)

Last Answer : I keep my windows open and use a fan,blinds lowered.

Description : Do solar curtains actually work and cool off a hot room facing the sun?

Last Answer : answer:They seem to. Here are some comments: It cut the Houston Texas heat in the bedroom 8 eight degrees from 80 to 72 in the early morning sunrise, you did not wake up early, because you ... made a world of difference. Keeps the sun/heat out making the kitchen about 10 degrees cooler. Source

Description : Would you rather date a "hot" or a "cool " person?

Last Answer : Cool.

Description : When shopping for bed linens, how do you select sheets that feel "cool" on those hot summer nights?

Last Answer : I think that just regular cotton is the best. It’s the lightest of the fabric that are used for sheets I think (someone can correct me if I am wrong). And just use two sheets instead of a blanket.

Description : My Flip Mino HD keeps saying "It's really Hot, Need to Cool Down" when it's cold to the touch?

Last Answer : Were you making naughty videos?

Description : Where would you go to cool down if you were at a foreign city without money to spend in fancy venues, in a totally burning hot summer day?

Last Answer : Splashing her feet in a fountain…....sitting in the cool dark of a cathedral…..

Description : Are there any breathing techniques / thinking strategies that help you stay cool when you are hot?

Last Answer : By remembering that it’s illegal to be forced to work in grueling conditions and tell my boss as much. If you’re thinking about stripping, then it must be grueling. Are you in a union? Tell your union rep. P.S. If you threatened to strip down, maybe that’s why the boss is making it hot???

Description : What's your favorite way to cool off when the weather's hot?

Last Answer : Get Naked

Description : Is there a good technique for keeping a house cool on hot days?

Last Answer : We do that technique to cut down on AC use - it's been over 100 here lately. As soon as it gets cool at night, open all the windows & blinds. First thing in the morning, close everything up, shut ... and set it to 78. It'll run off & on until early evening when we can open everything up again.

Description : How do you cool a hot laptop?

Last Answer : answer:Give it air flow. They have for 15 and lower laptop cooling plates, which usually just have dual fans, I have a 17 so that isn't an option, but they're typically 20$ and seem to do a ... have a mac, I can't help you, they're well known for burning people (literally; especially macbook pros)

Description : Can you still use "Ricey Cauliflower" Had streak hot weather, then cool again.

Last Answer : Need Answer

Description : Why the Sun is so hot and the moon is cool?

Last Answer : I will compare some points which can be easy to understand why sun is hot? The sun is not isn't different from you just like gravity hold you down, gravity holds the sun together gravity continually ... claim, they deny the science, they do not change claim so that how we got to cold moonlight.

Description : What would happen to plate poured with agar that is too hot or cool?

Last Answer : We Wouldn't Survive

Description : Match the following: List-I List-II (Crops) (Geographical conditions) A. Barley 1. Hot and dry climate with poor soil B. Rice 2. Cool climate with poorer soil C. Millets 3. Warm and moist climate with high altitude D. Tea 4. Hot and moist ... C D (a) 2 4 1 3 (b) 3 4 1 2 (c) 2 1 4 3 (d) 3 2 4 1

Last Answer : Ans: (a)

Description : Match the following [IAS 1997] Crops Geographical conditions A. Barley 1. Hot and dry climate with poor soil B. Rice 2. Cool climate with poorer soil C. Millets 3. Warm and Moist climate with high altitude D. Tea 4. Hot and Moist climate with ... D (a) 2 4 1 3 (b) 3 4 1 2 (c) 2 1 4 3 (d) 3 2 4 1

Last Answer : Ans: (a)

Description : The freezer in a refrigerator is fitted near the top (a) to keep it away from the hot compressor which is near the bottom (b) because of convenience (c) so that it can cool the whole interior by setting up convection currents (d) without any specific purpose

Last Answer : Ans:(c)

Description : The Savannah finds its ideal conditions of growth in: (1) mild and humid climate (2) dry summer and wet winter climate (3) hot humid climate with long dry season (4) hot summer and cool winter climate

Last Answer : (3) hot humid climate with long dry season Explanation: Savanna formations find a favourable growth in form of a hot sub-humid tropical climate, a dry season and a rainy season, with an ... either side of the equator on the edges of tropical rainforests. Savannas have warm temperature year round.

Description : Transpiration increases in – (1) Hot, thy and windy condition (2) Hot, damp and windy condition (3) Cool, damp and windy condition (4) Cool, dry and still condition

Last Answer : (1) Hot, thy and windy condition

Description : During hot weather, the fan produces a feeling of comfort. This is because – (1) fan supplies cool air (2) fan cools the air (3) our perspiration evaporates rapidly (4) conductivity of air increases

Last Answer : (3) our perspiration evaporates rapidly Explanation: Fans make the air more comfortable for two reasons: (1) by moving the air, they blow away body heat and evaporate sweat, cooling the body, and (2) they also mix the cooler air near the floor with the warmer air by people's faces.

Description : Air coolers are more suitable for – (1) hot and humid climate (2) hot and dry climate (3) cool and humid climate (4) cool and dry climate

Last Answer : (2) hot and dry climate Explanation: An air cooler works on the simple principle of evaporation. It does not yield good results when humidity is high. On the contrary, the temperature of dry ... liquid water to water vapor (evaporation), which can cool air using much less energy than refrigeration.

Description : Give reason: a) Soda bottles are often labelled “store in cool and dry place”. b) Balloons pops out during hot summer more frequently than in winter. c) During winter football filled with air reduces to its original size when taken outdoors.

Last Answer : a) Soda bottles are often labelled store in cool and dry place . The carbon dioxide filled in soda bottles on exposure to heat, expands because the gas inside the bottle expands as temperature ... . When football is taken out, its temperature decreases so the volume to gas filled also decreases.

Description : Tip burn of lettuce occurs at high air temperature when the soil is _______: a. Cool b. Dry c. Hot d. Wet

Last Answer : Cool

Description : Newspaper is a: a) Cool medium b) Hot medium c) Both “a” and “b” d) None of these

Last Answer : b) Hot medium

Description : Air cooled engine is preferred in which condition? A. Cool condition C. Humid condition B. Hot zone. D. None of the above

Last Answer : Hot zone

Description : The waste heat energy could be used to produce ....... a) Cool air b) Hot air c) Exhaust gas d) All of the above

Last Answer : Cool air

Description : What come out from the the cooling tower of a nuclear power plant 1 smoke 2 cool air 3 hot air 4 none of theses

Last Answer : 1 smoke

Description : It is a very hot day. You are in a special kitchen, in that there are no exits and the walls of this kitchen are thermally very well insulated. If you open the refrigerator door, the room will eventually: w) cool off. x) remain the same. y) heat up.

Last Answer : ANSWER: Y -- HEAT UP.