0
Ok, lets assume that a pool of water and the air are at the same temperature. There are a number of ways you can lose heat to the surroundings, however in this example the most important reason is:
Conduction. This is due to direct contact with surrounding particles. As the Particles in you body vibrate with energy they collide with surrounding air or water particles. You will thus lose much more energy to water than to air as water is much better at conducting heat away from you. (There are many times more water particles to transfer the energy away).
In terms of heat capacity, if water has a higher heat capacity then it will take more energy from your body to heat it up. Seeing as you body is warmer than the surrounding water, the water will take more of your thermal energy to reach thermal equilibrium with you.
Add your answer:
Earn +20 pts
Will iron nails rust faster in salt water or freshwater?
Does iron nail rust faster insltor fresh water2. materials:two nail,two cup,salt water,fresh water,3. Hypothesis.I think that a nail rust faster in salt water because of the chemicals in the salt.4. Procedure:inde variable:same nail and fresh and salt waterdep variable:how many days will it takecon varable:size of nail,different waterstepsgather my m
Why a swimming pool colder in a windy day?
I am not sure how significant this is - in other words, how quickly the swimming pool will react. But the idea is that the wind will result in water evaporating faster.
What would be more comfortable to sit on in the winter wood or metal?
Wood would be better to sit on in winter because metal takes away the heat from your body because it is a conductor. Wood is an insulator so it doesn't conduct heat away from you body very well. There four sitting on wood is better than sitting on metal in winter.
Does ice melt faster in air or water?
Been answered already.For the same temperaure, the ice will melt faster in the medium that extracts most heat from it.Now, compare the heat conductivity of water and air - you've got your answer!Water, because the heat is carried away up to 4x faster because water molecules are more tighly packed than air. === === There are many variables to this question. What is the temperature of the water? What is the temp of the air? Is either one moving or flowing? Is the air below freezing? An ice cube melts because the ambient layer of air or water around it is changed rapidly. Styrofoam cups and coolers are designed to slow this down. If you take ice that has a fan blowing on it, it will melt faster because the air removes this layer surrounding it and replaces it with a warmer layer.well, technically ice is water, so if the water is liquid, it would melt faster there, however if the air is warm that will melt it quickly too.AnswerThe ice cube in cup that is by itself will melt slower. Ice water will have less kinetic energy, so ice cube in ice water will melt faster. Compared to the cup, the temperature surrounding the cup is much higher than ice water and so kinetic energy will be higher. Thus, causing the ice to melt faster in cup. Thie answer bears on the temperature in the ambient air. If it is -50 C in the room the ice in the cup will not melt. It will, however, evaporate eventually. I guess the ice cube in the ice water would freeze, too, so in that case it's moot. HmmmWater will have more contact with the ice cube and absorbs heat better and hence, will be able to transport or transfer its heat to the cooler ice cube quicker. Initially, both air and water contact surfaces are equal in size. However, just as soon as melting of ice begins, the meltwater " skin " produced reduces the contact surface area of the surrounding warmer air, insulating slightly and absorbing some of the heat itself. As the meltwater flows down and off the ice cube, it is carrying some of that absorbed heat away from the ice, slowing down the overall melting process in air. Interestingly, ice cubes floating in water, will have both air and water contact surfaces. If you could study a side view of the melting ice cube, you would see that the portion below the water surface melts faster ( becomes smaller in size). To compensate for this loss of below-surface mass of the ice cube, it sinks slightly. It appears the air is winning the race but this is not true. The faster heat transfer of the water medium is actually pulling the cube down. This would be clearly demonstrated if you set the cube up (with an onion bag supporting net ) such that it was supported from dropping down lower and lower into the water as it melted. Then you would see the below surface portion virtually disappear. As this happens the top-heavy portion will want to turn turtle to compensate for the disappearing bottom half of the cube.it melts faster in water because I tried it before the person who said that should put more notes down....
When you forget to turn of a teakettle why is the water gone?
The water boils away.
Does kerosene evaporate faster than water. why?
Yes, kerosene evaporates faster than water because it has a lower boiling point. This means that at normal temperatures, kerosene molecules have more energy to break away from the liquid surface and enter the gas phase compared to water molecules.
How does the speed of flowing water affect erosion?
The speed of flowing water affects erosion by increasing the rate at which particles are picked up and carried away. Higher speeds lead to greater kinetic energy, which enables water to dislodge more sediment and wear away surfaces more quickly. In general, faster flowing water causes more erosion compared to slower-moving water.
Would water drain away faster through clay soil or sand?
Water would typically drain away faster through sandy soil compared to clay soil. This is because clay soil has smaller pore spaces that restrict water movement, whereas sandy soil has larger pore spaces that allow water to drain more easily.
Why a tiled shower feels colder than a cloth bath mat?
The tiles conduct heat away faster than cloth
Why does a metal doorknob feel colder than the wooden door?
Metal is a better conductor of heat than wood, so it can quickly conduct heat away from your hand, making it feel colder. Additionally, metal tends to have a lower heat capacity than wood, so it reaches the surrounding temperature faster, further contributing to the sensation of coldness.
Do winds blow faster or slower in Florida compared to the equator?
Winds blow faster in Florida compared to the equator. The Coriolis effect causes winds to rotate faster as they move away from the equator towards the poles. Florida is situated closer to the mid-latitudes where this effect is stronger, leading to faster winds.
How fast body lose heat in cold water?
The rate at which the body loses heat in cold water depends on factors like water temperature, body composition, and level of physical activity. Generally, the body loses heat much faster in cold water compared to cold air, as water conducts heat away from the body 25 times faster than air. Hypothermia can occur in cold water in as little as 15 minutes.
What cup will freeze water faster glass or a foam?
Water will freeze faster in a glass cup compared to a foam cup because glass is a better conductor of heat than foam. This means that the glass cup will transfer heat away from the water more quickly, leading to faster freezing. Foam cups insulate better and will retain heat, making the freezing process slower.
Why does salt dissolve faster in hot water rather than cold?
In hot water the water molecules are moving at a faster rate than they move in cold water. The faster moving molecules hit the salt molecules with greater force and knock them away from the other salt molecules faster. That way the salt molecules dissolve in the water quicker.
How does water differ from air in the way in which it transmits heat away from the body of an organism?
Water has a higher specific heat capacity than air, meaning it can absorb more heat energy before its temperature changes. Water also has a higher thermal conductivity compared to air, allowing it to transfer heat more efficiently. As a result, when an organism is in water, heat is conducted away from the body faster than in air.
Will a quarter decompose faster in salt water or fresh water?
A quarter will likely decompose faster in salt water due to the corrosive nature of salt on metals. Fresh water is less likely to accelerate the decomposition process of a metal like a quarter.
How much faster does moisture transfer heat away from the body compared to air?
This depends on how hot your body is. However, in most cases it is almost the same.
