Book edition 7th

Author(s) Douglas C. Giancoli

Pages 978 pages

ISBN 978-0321625922

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Short Answer

Very high in the Earth’s atmosphere, the temperature can be 700°C. Yet an animal there would freeze to death rather than roast. Explain.

The emissivity of the animal is much higher than that of the rarified atmosphere.So, the animal will dissipate more energy by radiation than it can obtain from the atmosphere.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Understanding radiation

In heat transfer through radiation, the energy is transferred in the form of electromagnetic radiation. In this process, the transfer of heat occurs in all directions in straight lines.

Step 2: Explanation for why an animal in the uppermost atmosphere would freeze to death rather than roast

The temperature is high in the uppermost atmosphere. But as the gas particles’ density is very low, very few gas molecules will collide with the animal at higher temperatures to heat it. Alternatively, the animal will transmit heat energy to the rarified atmosphere. The heat energy dissipated by the animal by radiation is more than it can obtain from the atmosphere. It is because the emissivity of the animal is much higher than that of the rarified atmosphere.

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Physics Principles with Applications

Answers without the blur.

Short Answer

Very high in the Earth’s atmosphere, the temperature can be 700°C. Yet an animal there would freeze to death rather than roast. Explain.

Step by Step Solution

Step 1: Understanding radiation

Step 2: Explanation for why an animal in the uppermost atmosphere would freeze to death rather than roast

Most popular questions for Physics Textbooks

(II) During exercise, a person may give off 185 kcal of heat in 25 min by evaporation of water (at 20°C) from the skin. How much water has been lost? [Hint: See page 399.]

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Select your language

Physics Principles with Applications

Answers without the blur.

Short Answer

Very high in the Earth’s atmosphere, the temperature can be 700°C. Yet an animal there would freeze to death rather than roast. Explain.

Step by Step Solution

Step 1: Understanding radiation

Step 2: Explanation for why an animal in the uppermost atmosphere would freeze to death rather than roast

Most popular questions for Physics Textbooks

(II) During exercise, a person may give off 185 kcal of heat in 25 min by evaporation of water (at 20°C) from the skin. How much water has been lost? [Hint: See page 399.]

Want to see more solutions like these?

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