Physics Flashcards
(62 cards)
measure of the total energy of a thermodynamic system
Enthalpy
if the energy is released during a reaction. Such a reaction is called ………and the delta H is negative
Exothermic reaction
If the energy could be consumed in a reaction. Such reactions are called ……and the delta H is positive here
Endothermic reaction
The ability to do work because of position is called
potential energy
The ability to do work because of motion is called
Kinetic energy
The SI unit for power is
Watt
Bourdon tube would typically be used to measure?
Gage pressure
A temperature of 0 K corresponds to
-273 °C
The SI units of relative density are
unitless
The SI units for specific weight are
KN/m3
The result when we have a force per unit area is
Pressure
A force through a distance is referred to as
work
The capability of doing work is referred to as
energy
The base SI units of density are
Kg/m3
The SI unit for work is
Joule
In terms of viscosity, a fluid that behaves in a linear fashion according to the shear stress/velocity gradient relationship would be considered to be a
Newtonian fluid
________ is a substance’s absolute viscosity over its density
Kinematic viscosity
Dynamic viscosity is a function of
Sheer stress over shear rate
Viscosity will typically decrease in liquids if
the temperature increases
Viscosity will typically increase in gases
if the temperature increases
Density will typically increase in all substances if
the pressure increases
Adiabatic process
no heat is absorved
Specific heat of water
4.183 KJ/Kg °C
Specific heat of ice
2.135 KJ/Kg °C
