First law of thermodynamics - enthalpy (heat)
second law of thermodynamics - entropy (disorder)
third law of thermodynamics - entropy of a perfect crystal is equal to zero
Is this the general basis of the laws of thermodynamics and/or is this an ok way of thinking of it?
Laws of Thermodynamics
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Re: Laws of Thermodynamics
It could be an okay way of reminding yourself what each law has to do with but it doesn't necessarily define each one.
The first law of thermodynamics has to do with the conservation of energy. It says that energy can neither be created nor destroyed; it is only transformed.
The second law of thermodynamics can be stated in many ways. One way is that any spontaneous reaction will increase the entropy of the universe. Another way to say it is that there is no such device whose sole purpose is to transform a given amount of heat completely into work. And yet another way to say it is that the entropy of an isolated system never decreases.
The first law of thermodynamics has to do with the conservation of energy. It says that energy can neither be created nor destroyed; it is only transformed.
The second law of thermodynamics can be stated in many ways. One way is that any spontaneous reaction will increase the entropy of the universe. Another way to say it is that there is no such device whose sole purpose is to transform a given amount of heat completely into work. And yet another way to say it is that the entropy of an isolated system never decreases.
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Re: Laws of Thermodynamics
First Law: The conservation of energy (deltaU = w + q)
Second Law: nature of entropy increases over time; tend toward disorder (deltaS = q/t)
Third Law: the entropy of perfect crystal at absolute zero is equal to 0 (eqn derived from second law)
It is perfectly fine to think it the way you have however, it would be better to know what equation it relates to be sure.
Second Law: nature of entropy increases over time; tend toward disorder (deltaS = q/t)
Third Law: the entropy of perfect crystal at absolute zero is equal to 0 (eqn derived from second law)
It is perfectly fine to think it the way you have however, it would be better to know what equation it relates to be sure.
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