102a Flashcards
Sensible heat is
Heat we can sense by touch
Specific heat is the
Amount of heat required to change 1lb of substance by one degree Fahrenheit
Heat is energy in the
Form of molecular motion
Superheating is
Adding heat to Vapour at its evaporation pressure
Sub cooling is
Removing heat from a liquid at its condensation pressure
If sensible heat is removed from a Vapour it’s called
Desuperheating
Sub cooling take place in a liquid when its temperature is lowered below the
Boiling point at boiling pressure
First law of thermodynamics is
Energy cannot be created or destroyed
Second law of thermodynamics
Heat energy moves from high to low
A BTU is the
Amount of heat required to raise the temperature of 1lb of water by one degree Fahrenheit
Specific heat is the amount of heat required to change
A specified mass of a substance by one degree
Water to steam is
970BTU
Water to Solid is
144BTU
Is temperature heat
No
Temperature is the average amount of
Molecular motion in a substance