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Solved: In a common classroom demonstration, a balloon is

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

Solution for problem 127P Chapter 11

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 127P

PROBLEM 127P

In a common classroom demonstration, a balloon is filled with air and submerged into liquid nitrogen. The balloon contracts as the gases within the balloon cool. Suppose the balloon initially contains 2.95 L of air at 25.0 °C and a pressure of 0.998 atm. Calculate the expected volume of the balloon upon cooling to —196 °C (the boiling point of liquid nitrogen). When the demonstration is carried out, the actual volume of the balloon decreases to 0.61 L. How well does the observed volume of the balloon compare to your calculated value? Can you explain the difference?

Step-by-Step Solution:
Step 1 of 3

Solution 127P

This has to do with Charles Law that states volume is proportional to temperature (if one goes up the other one does and vice versa).

The formula you must use is

v1/t1 = v2/t2

* v = volume

* t = temperature

Now substitute in the values... so...

2.94...

Step 2 of 3

Chapter 11, Problem 127P is Solved
Step 3 of 3

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

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