{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

090114_Lecture2 - Physical Chemistry I for Biochemists...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Physical Chemistry I for Biochemists Chem340 Lecture 2 (1/14/09) Yoshitaka Ishii Gas Ch. 1 Non-Ideal Gas (Ch 1 & Raff p21-41) Correction of Homework (p1.30 in text p13) • P i = P i 0 exp(-M i g/RT) Æ P i = P i 0 exp(-M i gz/RT) If you find any corrections needed in your homework, please let me know it.
Background image of page 1

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

View Full Document Right Arrow Icon
2 Ideal Gas Eq. using molar density PV = nRT P, T, ρ : Intensive variable (variables that does not depend on the size of the system) n, V: Extensive variable (those that depend on the size) P = ρ RT Å This depends on only three intensive variable. ρ Is called molar density Isotherms, isobars, isochores Isotherm: T = constant Æ PV/n = const Isobar: P =const Æ V/nT = const Isochore (or isovolumetric): V = const P/nT = const T increase 0 20 40 60 80 0 0.5 1 1.5 2 1/V (1/m3) P (Pa)
Background image of page 2