it states that a state in which entropy of a substance equals 0 cannot be achieved or 0 K temperature is the lowest temperature that can be achieved theoretically. You cannot go below 0 K.Hope it helps...-The Laws of thermodynamics are relative to how Power flows and is transferred form one system to another.......
Of course, energy is conserved in this case but it still isn't possible. So, 2nd law was created to justify and predict feasibility of reactions and processes.
2nd law gave birth to a state function called entropy. Entropy is the measure of randomness of a substance.
3rd law was created to define a state where entropy would become equal to zero. It is possible only at 0 Kelvins.
In other words, it states that a state in which entropy of a substance equals 0 cannot be achieved or 0 K temperature is the lowest temperature that can be achieved theoretically. You cannot go below 0 K.
Hope it helps...
The Laws of thermodynamics are relative to how Power flows and is transferred form one system to another.
The laws were formulated as a result of a Joule experiment in which he showed a relationship between mechanical energy and temperature energy'
The laws can be defined as follows.
The thermal power input into a system is equivalent to the mechanical work produced plus a temperature energy per second that flows to the surroundings.
The second laws indicated that you cannot use the same power twice to do the same work'
The third law indicates how energy finds it equilibrium
The fourth law indicates how masses are free to move in a location that can be occupied.
Basically it can be liken unto the flow of water which can flow into an empty tank,but not in a tank that is already full.
The word thermodynamics is composed of two words; thermo which means Heat and dynamics which means motion.
Thus Heat is Energy flow of micro mass particles moving a a particular frequency. Heat was originally thought as mystery particles called calories. Today heat is measured as an eponymous unit called joules.
Basically the Laws of thermodynamics define the Universe as a conservative system where mass ,time and volume are conserved.They are basically the General law where all the forces of nature merge into a common denominator.
