Gases Ideal Gas Law Ideal Gas Law An
![Gases Ideal Gas Law Gases Ideal Gas Law](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-1.jpg)
![Ideal Gas Law • An ideal gas is defined as one in which all Ideal Gas Law • An ideal gas is defined as one in which all](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-2.jpg)
![Ideal Gas Law • An ideal gas can be characterized by three variables: absolute Ideal Gas Law • An ideal gas can be characterized by three variables: absolute](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-3.jpg)
![Kinetic Molecular Theory • The gas consists of very small particles, all with non-zero Kinetic Molecular Theory • The gas consists of very small particles, all with non-zero](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-4.jpg)
![Exceptions to the Ideal Gas Law • at low temperatures (close to 0 K) Exceptions to the Ideal Gas Law • at low temperatures (close to 0 K)](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-5.jpg)
![Symbolic Representation Ideal Gas Law PV = n. RT • n = number of Symbolic Representation Ideal Gas Law PV = n. RT • n = number of](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-6.jpg)
![Ideal Gas Law Example #1 What volume is needed to store 0. 050 moles Ideal Gas Law Example #1 What volume is needed to store 0. 050 moles](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-7.jpg)
![Ideal Gas Law Example #2 What pressure will be exerted by 20. 16 g Ideal Gas Law Example #2 What pressure will be exerted by 20. 16 g](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-8.jpg)
- Slides: 8
![Gases Ideal Gas Law Gases Ideal Gas Law](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-1.jpg)
Gases Ideal Gas Law
![Ideal Gas Law An ideal gas is defined as one in which all Ideal Gas Law • An ideal gas is defined as one in which all](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-2.jpg)
Ideal Gas Law • An ideal gas is defined as one in which all collisions between atoms or molecules are perfectly elastic and in which there are no intermolecular attractive forces. • Think of a gas as a collection of perfectly hard spheres which collide but which otherwise do not interact with each other. Like Billiards!
![Ideal Gas Law An ideal gas can be characterized by three variables absolute Ideal Gas Law • An ideal gas can be characterized by three variables: absolute](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-3.jpg)
Ideal Gas Law • An ideal gas can be characterized by three variables: absolute pressure (P), volume (V), and absolute temperature (T). • The relationship between them may be deduced from kinetic molecular theory.
![Kinetic Molecular Theory The gas consists of very small particles all with nonzero Kinetic Molecular Theory • The gas consists of very small particles, all with non-zero](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-4.jpg)
Kinetic Molecular Theory • The gas consists of very small particles, all with non-zero mass. • These molecules are in constant, random motion. The rapidly moving particles constantly collide with the walls of the container. • The collisions of gas particles with the walls of the container holding them are perfectly elastic. • The interactions among molecules are negligible. They exert no forces on one another except during collisions.
![Exceptions to the Ideal Gas Law at low temperatures close to 0 K Exceptions to the Ideal Gas Law • at low temperatures (close to 0 K)](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-5.jpg)
Exceptions to the Ideal Gas Law • at low temperatures (close to 0 K) – gas molecules have less kinetic energy (move around less) so they do attract each other • at high pressures (like many, many atm) – gas molecules are forced closer together so that the volume of the gas molecules becomes significant compared to the volume the gas occupies
![Symbolic Representation Ideal Gas Law PV n RT n number of Symbolic Representation Ideal Gas Law PV = n. RT • n = number of](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-6.jpg)
Symbolic Representation Ideal Gas Law PV = n. RT • n = number of moles • R = universal gas constant = 0. 0821 L*atm/mol*K
![Ideal Gas Law Example 1 What volume is needed to store 0 050 moles Ideal Gas Law Example #1 What volume is needed to store 0. 050 moles](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-7.jpg)
Ideal Gas Law Example #1 What volume is needed to store 0. 050 moles of helium gas at 2. 00 atm and 400 K?
![Ideal Gas Law Example 2 What pressure will be exerted by 20 16 g Ideal Gas Law Example #2 What pressure will be exerted by 20. 16 g](https://slidetodoc.com/presentation_image_h2/3e30b895ec6e466496e84abc825dc3f0/image-8.jpg)
Ideal Gas Law Example #2 What pressure will be exerted by 20. 16 g of hydrogen gas in a 7. 5 L cylinder at 20 o. C?