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? Equivalently it also appears cooler then wooden bar if they are both colder then room temperature. Why is it easier to charge a ballon on a dry day than on a humid day?

In text questions page number 10 Chapter 1: Matter in Our Surrounding Science Class 9 solutions are avalable at ourwebsite to help the students. In text questions page number 10 is solved by our expert teachers. You can get ncert solutions and notes for class 9 chapter 1 absolutely free. In text questions page number Question 1. Why does a desert cooler cool better on a hot dry day? Answer: A desert cooler cools better on a hot dry day because on a hot dry day temperature is high and humidity is less which helps in better evaporation.

Why does a desert cooler cool better on a hot

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. Both Assertion and Reason are incorrect. Assertion is correct but Reason is incorrect. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion. Open in App. Verified by Toppr.

For any substance, why does the temperature remain constant during the How does perspiration or sweating help keep our body cool on a hot day? Follow Us On Facebook.

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.

When the scorching heat of summer hits, many people turn to desert coolers as a cost-effective and energy-efficient way to stay cool. But have you ever wondered why a desert cooler seems to work better on a hot day? In this article, we will explore the science behind desert coolers and why they are so effective in hot weather. Desert coolers, also known as evaporative coolers, work on the principle of evaporation. When water evaporates, it absorbs heat from the surrounding air, causing the temperature to drop. Desert coolers use this natural process to cool the air inside a room or building.

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.

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Question 2. Why does a person drink a hot tea on a chilly winter day or iced tea on a hot summer day? Give two reasons to justify that: Water at room temperature is a liqui Posted by Hanmeet Kaur 1 day, 6 hours ago. Class 12 Question Bank Class 2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion. Reason: On a hot dry day, the temperature is high and humidity is low. Official Sample Papers. Reason High biological oxygen demand means low activity of bacteria in water. Menu Categories.

When the scorching heat of summer arrives, many people turn to various cooling methods to beat the heat.

Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells. Write the reasons for the following observations. Assertion is correct but Reason is incorrect. Why does the hot tea become cold after sometime? Why does heat transfer from a hot body to a cold body? Answer: A desert cooler cools better on a hot dry day because on a hot dry day temperature is high and humidity is less which helps in better evaporation. Which of the following is the climate found in Kerala? Class 2. Convert the following temperatures to Celsius scale K. Chair, air, affection, smell, hate, almond, thoughts, cold, cold drink, fragrance of perfume. Give question paper for revision. Both Assertion and Reason are incorrect.