The "zeroeth" law defines thermal equilibrium. It also helps define the concept of temperature. Both of these are prerequisite assumptions and/or concepts that the first and second laws depend on.
zeroth law forms the basis for first law of thermodynamics
thermometer
Yes it is.
newton's 1st law in thermodynamics.....
Thermal equilibrium
It was found to be more fundamental than the other laws. It should therefore be the first law, but at that time, renumbering all the laws was deemed impractical, since the terms "First Law" and "Second Law" were already well-established.
zeroth law is so called because before zeroth law 1st law was made. but after dat dis law was introduced, but dis law was more basic den 1st law. but dey cudn't change d name of 1st law as it was already given n had got recognision. so dis new law was given d name zeroth law as zero comes before one or say1st.....simple
If a hot body and a cold body are brought into contact with each other, they finally attain the same temperature. The hot body emits heat while the cold body absorbs energy continually, although in unequal quantities. The exchange process continues until the temperatures equalize. Each object is then absorbing and emitting equal amounts of energy and the objects are said to be in thermal equilibrium.
It was determined that the so-caolled zeroth law was more fundamental than the other two.
The first and second laws were already formulated when the "zeroeth law" was suggested, however, the zero law is necessary in order to define the quantity "temperature" critical to the second law, so someone suggested just numbering it zero so that it would come before the already well established 1st and 2nd laws, rather than re-numbering them.
The 1st Law of thermodynamics is a restatement of the law of conservation of energy.
That law is known as the Law of Conservation of Energy. It is also known as the First Law of Thermodynamics.