Look up page 109 in Rays text book and page 108. all on henry's law
The Law that states: the volume of a gas varies inversely with its pressure.
The formula for Boyle's Law
The Law that states the volume of a gas varies directly with changes in temp.
The formula for Charles' Law
The Law that sates: the pressure exertd by a gas varies directly with its absolute temp.
What is the formula for the universal gas Law?
What does STP mean?
0C and 760mmHg
Body temp BT means?
Ambient temp. (AT) or pressure (AP) means?
The existing environmental temp. or pressure.( opp. of STP)
Saturated gas (S) means?
a volume of gas with a relative humidity of 100% at any given temp.
Dry gas (D) means?
a volume of gas w/ no vapor in it.
a volume of dry gas at temp. of 0C and Pressure 760mmHg
a volume of gas saturated w/ water vapor at 37C and ambient enviroment pressure.
a volume of gas saturated with water vapor at ambient temp. (room temp.) and pressure.
When reporting: reporting gases in the lungs are recorded as?
When reporting: gases that undergo chemical rxn in the body, such as blood gases, are recorded?
If saturated gas vol. are to be used in physiologic calc., they are fist________, then calc, back to______.
corcected to their dry volume, the saturated value.
Is the temp. above which the kinetic activity of its molecules is so great that the attactive forced cannot keep them in a liquid state. It is the highest temp. at which a substance can exist as a liquid.
Crtical temp. of a liquid.
Is the oressure neede to maintain equilibrium between the liquid and gas phases of a substance at this critical temp.
Is where you have critical temp. and critical pressure of a substance.
A gas that has a critical temp. so low that at room temp. and press. it cannot exist as a liquid.
is the gaseus state of a substance coexisting with its liqud or solid state at room temp. and pressure.
is the bulk movement of a substance through space.
is the study of fluids in motion.
The pressure exerted by a liquid in motion depends on the nature of _____ not just the depth and density of the fluid.
It states that in any mechanical process, there will always be a decrease in the total energy available to do work.
The Second Law of Thermodynaics
As fluid flows through a tube there will be a pressure drop along the way due to?
a cumulative energy loss
What is the forumla for total flow resistance?
In the flow resistance equations what does P1 stand for?
it is the pressure at the upstream point
In the flow resistance formula what does P2 stand for?
it is the pressure at the downstream point
In the flow resistance formula, what does V stand for?
It is the flow
Flow where a fluid moves in discrete cylindrical layers or streamlines.
Determines the pressure difference required to produce a given flow, under conditions of laminar flow through smooth tube of a fixed size.
Formula of for poiseuille's law. Determines press. diff. to prod. a flow.
in poiseuille's formula delta P stands for?
the driving pressure gradient
in poiseulle's formula n stands for?
the viscosity of the fluid
in poiseulle's formula l stands for?
the tube length
in poiseulle's formula v stands for?
the fluid flow
in poiseulle's formula r stands for?
the tube radius
For fluids flowinf in a laminar pattern, the driving pressure will increase whenever the_________?
fluic viscosity, tube length, or flow increases.
Greater pressure will be required to maintain a given flow if the tube radius_____?
flow where ther fluid molecules form irregular eddy currents on a chaotic pattern.
Formula for reynolds number
in reynolds number formula v stands for?
in reynolds number d stands for?
In reynolds number r stand for?
the tube radius
in reynolds number n stands for?
In a smooth-bore tube, laminar flow becomes turbulent when Nr exceeds______.
These conditions favor what type of flow: increased fluid velocity, increased fluid density, increased tube radius, or decreased fluid viscosity?
When flow is turbulent the press. diff across a tube is defined by what formula?
deltaP = flV^2/4pi^2r^5
deltaP = flV^2/4pi^2r^5 f stands for?
friction factor based on the fluid's density and viscosity and the tube wall roughness.
deltaP = flV^2/4pi^2r^5 l stands for?
the tube length
deltaP = flV^2/4pi^2r^5 v stands for?
the fluid flow
deltaP = flV^2/4pi^2r^5 r stands for?
To double flow under laminar conditions, you only need to double ____.
the dricing pressure
To double flow under turbulent conditions, you would have to?
increase the dricing pressure fourfold
is a mixture of laminar and turbulent flow.
flow in the respiratory tract is mianly____
when all else is equal, pressres generated during laminar flow are most effect by fluid viscosity, whereas fluid density is the key factor when?
flow is turbulent
the most common units for flow are?
L/min or L/sec
The most common unit for velocity are?
fluid velocity, at a constant flow, varies inversely with the cross-sectional area of the tube. This relationship is called?
Law of Continuity
what kind of effect is done when a fluid flows through a tube of uniform diameter, pressure drecreases prgressively over the tube lenght.