{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# lec 3 - system Ideal Gas Equation of State p υ = RT where...

This preview shows pages 1–3. Sign up to view the full content.

Phases, Ideal Gases, p-v-T Diagrams Phase - Matter that is homogeneous in chemical composition and physical structure. Examples: Pure Substance - Matter that is uniform and invariable in chemical composition. Is air a pure substance? Simple Compressible Systems – Systems containing pure substances or mixtures of non-reacting gases. State Principle – For simple systems the values for only two intensive properties are needed to fix the state. Typical set of intensive var. are: . The number of indep. properties is 1+ the number of relevant quasi-equilibrium work processes. What is the relevant work process(es) for a simple compressible

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.

Unformatted text preview: system? Ideal Gas Equation of State p υ = RT where R is the universal gas constant pV = mRT since υ = V/m V is system volume, m is mass p υ = RT since υ = υ /M, R = R/M M is the molecular wt. pV = nRT since υ = V/n n is the number of moles Values for the universal gas constant R = 8.314 kJ/kmol ⋅ K R = 1.986 Btu/lbmol ⋅ °R R = 1545 ft ⋅ lbf/lbmol ⋅ °R Assumptions that go along with the Ideal Gas Model 1. 2. p – v –T Diagrams p-v and v-T diagrams often prove useful in solving thermo problems Features: Single-phase regions, Two-phase regions, Triple line, Saturation states, Vapor dome, Critical point....
View Full Document

{[ snackBarMessage ]}

### Page1 / 3

lec 3 - system Ideal Gas Equation of State p υ = RT where...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online