Dalton's Law

Blog Post #4

(May 11, 2016)

Dalton's Law tells us that for a mixture of gases in a container, the total pressure exerted is the sum of the pressures that each gas would exert if alone.

https://i.ytimg.com/vi/RqffPYOoxd8/maxresdefault.jpg

The pressure of a gas is unaffected by the identity of the gas.

Helpful Links:
Gas Laws-Laws of Partial Pressure
Gas Law Problems-Dalton's Law

Avogadro's Law

Blog Post #3

(May 11, 2016)

Avagadro's Law tells us that for gas at constant temperature and pressure, the volume is directly proportional to the number of moles of gas present.

http://thescienceclassroom.org/wp-content/uploads/2013/04/Avogadros-Law.png

As the number of moles of a gas increase, the volume will have to increase in order for the pressure of the system to remain constant.
The volume of one mole of gas at STP is 22.4L.

Helpful Links:ChemTeam-Avogadro's Law
AP Chem: Gas Laws

Charles' Law

Blog Post #2

(May 11, 2016)

Our next law in the gas laws unit consisted of temperature and volume otherwise known as Charles' Law. 

Charles' Law tells us that temperature and volume vary directly with each other. 

Temperature for all problems must be in kelvins.

0 DEGREES CELSIUS= 273.15 KELVIN

As the temperature of a gas increases, it gains energy. This results in an increase in contacting the sides of the container they are entrapped in. 

http://dvhsgaslaws.weebly.com/uploads/1/2/1/6/12160342/6555896_orig.jpg

The equation for Charles' Law is as follows:

http://thescienceclassroom.org/wp-content/uploads/2013/04/Charless-Law.png

Helpful Links:
Charles' Law
Charles' Law-Science Primer
Charles' Law Simulation

Units of Pressure/Boyle's Law

Blog Post #1

(May 10. 2016)

This next and last!! unit we are covering before the final consists of gases. Overall, this is a pretty simple unit that just contains a lot of concepts and math equations that makes it a bit difficult to wrap your head around. 

Characteristics of gases:

Gases expand spontaneously to fill their container.

Gases are highly compressible.

Gases form homogeneous mixtures.

Gas molecules are relatively far apart from one another and exert little influence on each other. 

Units of Pressure:

http://images.slideplayer.com/7/1711033/slides/slide_9.jpg

Boyle's Law

The relationship between pressure and volume is an inverse relationship.

Holds true at a constant temperature. (Boyle's law doesn't boil.)

http://www.one-school.net/Malaysia/UniversityandCollege/SPM/revisioncard/physics/heat/images/boyleslawformula.png

The indirect relationship between  volume and pressure.
http://www.one-school.net/Malaysia/UniversityandCollege/SPM/revisioncard/physics/heat/images/boyleslawformula.png


Helpful Links:
Animated Boyle's Law
Boyle's Law
Khan Academy-Boyles Law