Why does a desert cooler cool better on a hot

Why does a metal bar appear hotter then a wooden bar at the same temperature?

Use app Login. Assertion :A desert cooler cools better on a hot dry day. Reason: On a hot dry day, the temperature is high and humidity is low. The water takes heat from the hot desert cooler and evaporates. The evaporation of water cools the pads and the circulating water. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion Assertion is correct but Reason is incorrect Both Assertion and Reason are incorrect. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

Why does a desert cooler cool better on a hot

Byju's Answer. Question 1 Why does a desert cooler cool better on a hot dry day? Open in App. When a liquid evaporates, the particles of the liquid absorb energy from the surroundings to compensate for the loss of energy during evaporation. Since evaporation causes cooling, this makes the surroundings cool. In a desert cooler, the water inside it is made to evaporate. This leads to absorption of energy from the surroundings, thereby cooling the surroundings. Evaporation depends on the amount of water vapour present in air humidity. If the amount of water vapour present in air is less, then evaporation is more. On a hot dry day, the amount of water vapour present in air is less.

Thus, water present inside the desert cooler evaporates more, thereby cooling the surroundings more. In Text Questions Page Number

Why is it easier to charge a ballon on a dry day than on a humid day? How does perspiration or sweating help keep our body cool on a hot day? A cooler is quite effective on a hot and dry day. Why does all the water of the earth not get evaporated during hot summer days? Why does dry HCl gas not change the colour of the dry litmus paper? Why does blowing over a spoonful of hot tea cools it?

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Why does a desert cooler cool better on a hot

Byju's Answer. Question 1 Why does a desert cooler cool better on a hot dry day? Open in App. When a liquid evaporates, the particles of the liquid absorb energy from the surroundings to compensate for the loss of energy during evaporation. Since evaporation causes cooling, this makes the surroundings cool. In a desert cooler, the water inside it is made to evaporate. This leads to absorption of energy from the surroundings, thereby cooling the surroundings. Evaporation depends on the amount of water vapour present in air humidity.

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Does evaporation play a role? The cooling in a desert cooler is caused by the evaporation of water. The evaporation of water cools the pads and the circulating water. Equivalently it also appears cooler then wooden bar if they are both colder then room temperature. Topper's Corner. Tabulate the differences in the characteristics of states of matter. Assertion :A desert cooler cools better on a hot dry day. A desert cooler cools better on a hot and dry day because the higher temperature on a hot day increases the rate of evaporation of water and the dryness of air low humidity of air also increases the rate of evaporation of water. What are the characteristics of the particles of matter? This platform is meant only for asking subject specific and study related questions. Give reasons for the following observations : We can get the smell of One or more users have flagged this content as inappropriate. Why does our palm ful cold when we put some aceton or petrol or perfume on it?

Here in Washington, we finally got a slight break from what is shaping up to be one of the hottest summers in recent memory for pretty much the whole country. As we pondered the fact that this sort of weather could well become the norm in future decades due to climate change, we also remembered a counterintuitive cooling technique that many of us had heard of but doubted.

A cooler is quite effective on a hot and dry day. Political Science. What is the physical state of water at the following temperatures? Why does a desert cooler cool better on a hot dry day? How does the water kept in an earthen pot matka become cool during s Why does blowing over a spoonful of hot tea cools it? Why does our palm feel cold when we put some acetone or petrol or perf Standard IX Chemistry. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion. Posted by Riya Gupta 2 days, 8 hours ago. The cooling in a desert room cooler is caused by the evaporation of water. Shop Books. Avoid harassment and bullying. When humidity is high and temperature is low, the rate of evaporation decreases and cooling also decreases.