Chemistry 4
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Work is defined as?
Work done on an object is the force times the distance moved
Energy is
Capacity for doing work.
What is the law of conservation of energy?
Energy can neither be created or destroyed through it can be transformed from one form to another
What is power?
Rate of doing work
What is power measured in?
watts
What is kinetic energy?
The energy a mass has by virtue of being in motion. (KE=1/2mv^2)
What is potential energy?
Stored energy
What is internal energy?
Imagine a cylinder of compresssed gas
The First Law of Thermodynamics
Change in internal energy = energy transferred to object from a higher temp body + work done on the object
t/F: Temperature is a measurement of the tendency to gain or loose heat
True
Heat is energy which can be transferred.
Tre
What method of heat transfer is the greatest?
Radiation(40)
Which method of heat transfer is the least?
evaporation (10)