{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lect_22_IdealGasLaws-KineticTheoryOfGasses(1)

Lect_22_IdealGasLaws-KineticTheoryOfGasses(1) - Lecture 22...

This preview shows pages 1–6. Sign up to view the full content.

Lecture 22 Equations of state. The ideal gas. Kinetic model of a gas.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
State variables State variables for a system: they characterize the system macroscopically at a given time. • Pressure • Temperature • Volume • Mass or moles Important: a system is in a thermal state that can be described by these variables when ALL the system has uniform pressure, temperature, etc. Example: Gas in a tube whose ends are kept at different temperature is NOT in a thermal state.
Equation of state Can be obtained: Empirically From statistical mechanics The equation of state relates the state variables.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
The ideal gas An ideal gas is one whose molecules • are very small (point-like) • do not interact with one another This is very true for any gas that is not in an “extreme” situation. The gas is NOT ideal if we have: • high density • high pressure • near transition to liquid (or solid) • molecules are very large
The ideal gas state equation pV nRT = n = number of moles Ideal gas constant R = 8.31 J mol K What is mole?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern