View Full Version : True or False
SexyMarilyn
Apr 13, 2009, 11:01 AM
The first law of thermodynamics states that entropy is constantly increasing in the universe.
hmorrar
Apr 13, 2009, 11:07 AM
entropy .
Sorry what is exactly entropy?
Capuchin
Apr 14, 2009, 02:38 AM
The first law of thermodynamics states that entropy is constantly increasing in the universe.
False, the first law of thermodynamics states that energy cannot be created or destroyed.
Capuchin
Apr 14, 2009, 02:41 AM
sorry what is exactly entropy?
Entropy is a measure of randomness.
for example, ice has a low entropy because it's crystalline and the atoms have a lower number of degrees of freedom, it is more "ordered".
whereas steam has a high entropy, because each molecule has a high degree of freedom.
in any closed system, entropy cannot decrease. This is the second law of thermodynamics.