Social Sciences, asked by zainabzahra232, 1 year ago

Why Land absorbs and reflects more heat than water.?anyone plz help who know plz iwill marknas branliest

Answers

Answered by Azikhan
4
Here’s a simple attempt at an explanation.

You need to understand that at similar conditions, land and water actually receive the same amount of heat. It’s just how much heat is needed to raise the temperature/hotness of the item.

It’s because of heat capacity. Heat capacity is ameasure of the amount of heat necessary to raise the temperature of one mole of a pure substance by one degree Kelvin, but intuitively it means how much heat energy you have to “pay up” in order to increase the temperature(or hotness) of a particular substance.
Water is great at “storing heat”, because it takes a lot of heat energy to actually heat it as compared to say metal and sand.

The opposite applies the same way too. Water cools down slower than land even if they release energy at the same rate.

Answered by Cometknight
1

Land surfaces absorb much more solar radiation than water. This is due to the fact that most land surfaces are darker than water which of course means more absorption of solar radiation and heat. Water reflects most solar radiation that reaches its surface back to the atmosphere because of being transparent.Land heats fast because the earth is a constant temperature. I believe it is 55 degrees. Meaning if you dig a hole in the ground say 5' deep and take a temperature reading it will be the same if you dig that hole down 20' . Where water gets colder as you go deeper. The sun can only warm the water so deep before its rays don't penetrate the waters depths. This property is fairly easy to measure, and can be done with any substance. You simply apply a known amount of heat to something (say, a gram of water for example) and measure how much heat or energy is required to raise the temperature of that substance by one degree Celsius.

You can do this with one gram of steel, or one gram of air. It doesn't matter.


Scientists, over the years have done this with basically every substance, and water requires one of the highest amounts of energy to increase it's temperature compared to most other things.


Land of course is not one substance, but a bunch of substances. But you can simulate land by using a collection of soil and rocks in a laboratory and measure how much heat "land" absorbs. Since land requires less heat per gram than water to raise its temperature, the temperature of land will increase faster than water for a given amount of heat applied.


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