Difference between revisions of "Ch5 Lec 2"

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<div align="right"> Answer: 2.0 atm </div>
 
<div align="right"> Answer: 2.0 atm </div>
  
====Boyle's Law Question===
+
====Charles' Law Question====
:So if you have a container of gas at 1.0 atm pressure (P<sub>1</sub>) and 1.0 L volume (V<sub>1</sub>)...if the volume is changed to 0.5 L (P<sub>2</sub>), then what happens to the pressure?
+
:So if you have a container of gas at a temperature of 298 K pressure (P<sub>1</sub>) and 1.0 L volume (V<sub>1</sub>)...if the temperature is changed to 0.5 L (P<sub>2</sub>), then what happens to the pressure?
::Use: P<sub>1</sub>V<sub>1</sub>=P<sub>2</sub>V<sub>2</sub>;
+
::Use: V<sub>1</sub>/T<sub>1</sub>=V<sub>2</sub>T<sub>2</sub>;
  
 
<div align="right"> Answer: 2.0 atm </div>
 
<div align="right"> Answer: 2.0 atm </div>

Revision as of 02:35, 30 March 2020

Greetings,

If you look on the webpage, you will see that there is an active link to the Exam 2 on Friday April 3. I suggest you have a look at that link to give you more information about the format of the exam.

Note that the chapter 5 outline was given in Lecture 1. I have chosen to focus our attention on only the first 4 sections of chapter 5.

The following two sections are both discussed in the following Crash Course...please note that these crash course videos provide a huge amount of information in a short time period. This one in particular goes into a lot of the background histroy, which is an important thing to know, but will not be on the exam...have a look at:

The Ideal Gas Law: Crash Course Chemistry #12

Gas laws (Sec 5.3)

READ this section...

Summary:

from Crash Course video

Boyle's Law Question

So if you have a container of gas at 1.0 atm pressure (P1) and 1.0 L volume (V1)...if the volume is changed to 0.5 L (P2), then what happens to the pressure?
Use: P1V1=P2V2;
Answer: 2.0 atm

Charles' Law Question

So if you have a container of gas at a temperature of 298 K pressure (P1) and 1.0 L volume (V1)...if the temperature is changed to 0.5 L (P2), then what happens to the pressure?
Use: V1/T1=V2T2;
Answer: 2.0 atm


Crushing can demo --> discussed more in lab

Ideal gas law (Sec 5.4)

from Crash Course
from Crash Course