Unit 2 Matter And Energy. Flashcards
Saturated refrigeration means….
…Must have a vapor and a liquid.
Matter is made up of three states.
Solid liquid and gas.
Mass is…
A property of matter that responds to gravitational attraction.
Weight is…
…the force that matter applies to a supporting surface when it is at rest.
Specific volume is…
Indicates the volume that each pound of gas occupies.
Boyles Law
The volume of gas varies inversely with the absolute pressure, provided the temp remains constant.
Charles’ Law.
“As the temp goes up, the volume goes up”
Cold tires in the winter
Dalton’s Law.
The total pressure of a confined mixture of gasses is the sum of the pressures of each of the gasses in the mixture.
Law of Energy Conservation.
Energy is neither created nor destroyed but can be converted from one form to another.
Power
Is the rate of doing work.
Work is..
…force moving an object in the direction of force.
1 horse power= ?
746 watts
Definition of Matter.
A substance that occupies a space and has mass.
What is the definition of density?
Density describes the mass to volume relationship of a substance.
What is the definition of specific gravity?
It is a unitless number because it is the density of a substance divided by the density of water.
