Chapter 14: Q6Q (page 390)

Why does water in a metal canteen stay cooler if the cloth jacket surrounding the canteen is kept moist?

Short Answer

Expert verified

When the water soaked by the clothes evaporates, the heat needed for the evaporation process is taken from the interior of the canteen. This removal of heat energy from the interior keeps the interior of the canteen cool.

Step by step solution

Understating evaporation

Evaporation is a unit operation that involves the elimination of water from a fluid and its conversion from liquid to gas. This process is generally used in manufacturing biological drugs.

Explanation for why water in a metal canteen stays cooler if the cloth jacket surrounding the canteen is kept moist

When a cloth jacket surrounding the canteen containing water is kept moist, then it required heat for the process of evaporation of water from moist cloth. The heat needed is taken from the canteen's interior. This extraction of energy from the interior keeps the interior of the canteen cool.

Since metal is a good conductor of heat, it allows the transfer of heat easily from water to the cloth jacket and thus keeps the water cool.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Why does water in a metal canteen stay cooler if the cloth jacket surrounding the canteen is kept moist?

Short Answer

Step by step solution

Understating evaporation

Explanation for why water in a metal canteen stays cooler if the cloth jacket surrounding the canteen is kept moist

One App. One Place for Learning.

Most popular questions from this chapter

(I)How much heat is needed to melt 23.50 kg of silver that is initially at 25°C?

(II)The heat capacity, C, of an object is defined as the amount of heat needed to raise its temperature by 1 C°. Thus, to raise the temperature by \(\Delta T\) requires heat Q given by .

(a) Write the heat capacity C in terms of the specific heat, c, of the material. (b) What is the heat capacity of 1.0 kg of water?

(c) Of 45 kg of water?

Recommended explanations on Physics Textbooks

Fluids

Physics of Motion

Measurements

Electromagnetism

Magnetism and Electromagnetic Induction

Electricity

Study anywhere. Anytime. Across all devices.