Term

Definition
state that is identified by values of a suitable set of parameters known as state variables, state parameters, or thermo variables. 


Term
What are some state variables? 

Definition
Pressure, Temperature, density, specific internal energy, specific enthalpy, specific entropy. 


Term
What is the state principal phase rule? 

Definition


Term
Critical Temperature(T_c)? 

Definition
the max temperature at which a liquid and vapor phase can coexist in equilibrium 


Term

Definition
Pressure at the critical point on a PVT plot. 


Term
T/F? In a 2 phase region temperature and pressure are independent of one another? 

Definition


Term

Definition
density varies little with pressure 


Term

Definition
Is 100% a liquid at its saturation temperature or saturation pressure 


Term

Definition
Is 100% a vapor at its saturation temp or saturation pressure. 


Term

Definition
x = mass of vapor/ (mass of vapor+mass of liquid) 


Term
Two phase region equations 

Definition
specific volume= (1quality)(v_f)+(x)v_g u=(1x)u_f+(x)u_g 


Term

Definition


Term
Incompressed Fluid approximation 

Definition
delta(h) = c*delta(T)+ specific volume*delta(P) change in enthalpy = "cat"+"vap" 


Term

Definition
delta (u) = C_v*delta(T) *holds for both constant Volume/Pressure 


Term
Compressibility Chart eqn 

Definition
Z=Pv/RT v = specific volume* 


Term
Liquid/Solid/Ideal gas approximation 

Definition
* constant pressure/constant heat capacity delta(h) = C_p*delta(T) change in enthalpy="cat" 


Term

Definition
No Q, No W, No PE : h_outh_in=0.5(V_out^2V_in^2) 


Term

Definition
h_out=h_in *if no shaft work 


Term

Definition
m_1(h1_outh1_in)=m_2(h2_outh2_in) * if no shaft work, negligible KE/PE 

