Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Charles’ Law (Lesson 54)
Solve the following problems (assuming a constant pressure). Show your work!
Example: Helium has a volume of 36 mL at 400 K. What volume will it have at 600 K?
V1 = 36mL V1T1 = V2T2 (36/400) = (x/600)
T1 = 400 K
V2 = ? (36)*(600) = (x)*(400)
T2 = 600K
21600 = (x)*(400) x = (21600/400)
x = 54 mL
- Chlorine gas is at a temperature of 323 K when it occupies a volume of 3.2 L. At what temperature will the volume be 5.8 L ? (answer = 585 K)
- Neon gas was heated from 50°C to 150°C. Its new volume is 175 mL. What was the original volume? (answer = 134 mL)
- A sample of oxygen occupies a volume of 350 mL at 35oC. What volume will it occupy at 85oC? (answer = 407 mL)
- A sample of fluorine at 45°C and a volume of 1.8 liters is cooled to 20°C. What is the new volume? (answer = 1.7 L)
- Nitrogen gas at 300 K occupies a volume of 500 mL. To what temperature should it be heated to lower the volume to 250 mL? (answer = 150 K)
- Argon gas occupies a volume of 5.4 L at -45°C. What volume will it occupy at 45°C? (answer = 7.5 L)
A sample of helium is cooled and its volume changed from 280 mL to 125 mL. If the final temperature was -55°C, what was its original temperature? (answer = 488 K)
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