Khan academy Flashcards
pressure of fluid in smaller tube, static
Hydrostatic pressure does not reflect the pressure of a flowing fluid
The pressure in the opening is smaller due to the Venturi effect
fluid leaving heart through narrow valve
At point C, no fluid flow is occurring in the heart
Pressure increases equilibrate very quickly when a fluid is stationary (in heart, while blood moving in valve)
The hydrostatic pressure in the valve and the chamber are EQUAL via Pascal’s principle
Mechanical potential energy is often stored as either
gravitational potential energy or elastic (spring) potential.
stored mechanical force (like the flexible rubber membrane of a tire) heart chamber can adapt, due to influx/efflux of blood
Mechanical potential is stored during the pressurization phase
when pressure pushing it inwards
what does a pressure volume graph show?
The area within the loop has units of (pressure)\times×times(volume)
Analyzing the units, (pressure)×times(volume) = (Force/(Distance^2)*(Distance^3) = (Force)(distance) = Work
Alternatively, remember that the area within a closed loop on a pV diagram always gives the work performed by a heat engine.
noble gases intermolecular forces?
induced dipole (london dispersion) the farther e- are from nucleus the more polarizable and the stronger these dipoles are
nonpolar molecules have which iNTERmolecular bond?
induced dipole
intermolecular forces are due to which force?
electrostratic
decrease in enthalpy means more stable or less stable?
MORE.
GC bonds ex
at same temp and pressure, the molairty of gases (ideal) is
equal
Why are Cu and Cr exceptions to e- configuration?
a 1/2 or full filled d subshell is more stable
do e- leave s or d first?
s
phenol H’s have a pkA of?
10
