# Shared Flashcard Set

## Details

Dynamic
dynamic meteorology
17
Meteorology
12/13/2011

Term
 ideal gas
Definition
 a gas with molecules having pure elastic collisions and or potential energy of i nteraction or chemical bonding between molecules is negligible.
Term
 density
Definition
 amount of mass within a unit volume; mass per unit volume
Term
 Pressure
Definition
 the force is produced by momentum exchange onto a unit surface area from random molecular motions. Force per unit area.
Term
 temperature
Definition
 proportional to teh mean kinetic energy of molecular motion. For a gas, proportional to the mean translation kinetic energy of random molecular motions
Term
 how many molecules are in X kilomoles of any ideal gas?
Definition
 X *Na
Term
 How many molecules are in X kg of any ideal gas having a molecular weight M
Definition
 # of molecules = (Xkg/M)*Na
Term
 How many molecules of any ideal gas are in a volume of V1 having a pressure of P1 and a temperature of T1
Definition
 R = p1/rho1T1 M= R*/R
Term
 What is the mean kinetic energy for each molecule tpe in an ideal gas mixture having a pressure of P, gas constant R, and a density of rho?
Definition
 For each molecule type the temperature is the same and T=(1/3K)mV^2 = 3kt/2=3kp/2rhoR
Term
 Percent of a molecule type by number is the same as
Definition
 % by mole
Term
 Speeds or the velocity components are inversely proportional to the mass of the molecule. explain
Definition
 ideal gas have elastic collision so lessinertial will over experience higher speeds due to collisions with the more massive molecules having greater inertia. conservation of momentum and ke. newtons third law. the less massive molecules have lower inertia their direction and speed changes will be altered more considerably.
Term
 OMega equation brings you to omega =Vdotgradp what is assumed
Definition
 steady state pressure field on isentropic surfaces dp/dt = 0dry adiabatic flow or conservation of potential temperature. dtheta/dt=0
Term
Definition
 higher values
Term
 dot product
Definition
 cos
Term
 isoteric,isopycnic,isochoric
Definition
 dalpha=drho=dV=0dq=du=cvdT=(cv/R)*alpha*dpheating directly related to changes in T and pTand p must change
Term
 isothermal process
Definition
 dT=0 dq = dw=pdalpha=-alphadpdu=0 dh = 0heat directly related to changes in p and alphap and alpha must change
Term
 isobaric process
Definition
 dp=0dq=dh=cpdT=(cp/R)*p*dalpha = (cp/R)dwheating is directly related to change in T and alpha
Term
 equation
Definition