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Solved: Explain why the water in a cup placed in a small ice chest (without a

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 19Q Chapter 12

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 19Q

PROBLEM 19Q

Explain why the water in a cup placed in a small ice chest (without a refrigeration mechanism) initially at –5 °C does not freeze.

Step-by-Step Solution:
Step 1 of 3

Solution 19Q

No.

There is nothing magic about absolute zero.  In fact, it's not even a real, valid temperature - you can never cool anything down to absolute zero.  You can reach temperatures arbitrarily close to absolute zero, but under no circumstances could you ever cool an ice cube (or any object) down to that temperature.

Supposing you could, however, your glass of water would still not freeze instantly.  As soon as you dropped the ice in the water, heat would begin to move from the water into the ice.  If the glass of water is small enough (or the ice is large enough), it might have enough capacity to absorb the heat from the glass of water until the whole thing freezes eventually.  But remember, as the water is cooling down (and freezing around the ice cube), the ice cube is warming up.  This process continues until the whole system reaches an equilibrium - either the ice has melted and the water has cooled, or the water has frozen and the ice has warmed.  Which happens depends on how much ice and how much water.  The process still takes time.

Step 2 of 3

Chapter 12, Problem 19Q is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

The full step-by-step solution to problem: 19Q from chapter: 12 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This full solution covers the following key subjects: chest, cup, explain, freeze, ice. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. The answer to “Explain why the water in a cup placed in a small ice chest (without a refrigeration mechanism) initially at –5 °C does not freeze.” is broken down into a number of easy to follow steps, and 24 words. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Since the solution to 19Q from 12 chapter was answered, more than 363 students have viewed the full step-by-step answer.

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Solved: Explain why the water in a cup placed in a small ice chest (without a