Properties of Pure Substances Flashcards
Describe how a Pure Substance Behaves
Fixed chemical properties and composition regardless of changes in pressure and temperature (different phases)
What are independent properties
How does the independency of Temperature and Pressure change in a system
A Property can be changed without affecting the other
Temperature and Pressure are independent in a single-phase system
They are not independent in a system undergoing a phase change
Not independent in two phase regions
What is saturation temperature & Pressure
temperature/pressure where a phase change takes place
How do you calculate Quality
How do you Determine if a substance is a Superheated Gas a Compressed Liquid or two phase from a Temperature and Pressure Value
Single Phase Reigons
Look at Values of Temperature and Pressure
Consult Pressure table A3
If Temperature is above Saturation Temp, then its a Superheated Gas A4
If temperature is below then its a compressed liquid A5
If temp = saturation then 2 phase Region, A2 & A3
