Limitation of first law of thermodynamics:
According to the first law of thermodynamics heat and work are mutually convertible this is not possible in practical there is a limitation in transfer of one form of energy into another form of energy according to the first law of thermodynamics there is no obstruction.
Heat flow which is not possible in reality in the first law of thermodynamics energy is a cyclic process
which heat and energy are exchangeable but in real time this is does not occurs in natural way because it cannot be completely transferred into work.
Heat flows from hot to cold region but the reverse is not possible according to joules experiment work can be completely converted into heat energy but in the actual process the complete transfer of work it is not possible.
First law of thermo dynamics: Click Here
second law of thermo dynamics: Click Here
Zeroth law of thermo dynamics: Click Here
