Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Redefining Heat and Work in the Right Perspective of
  Second-law-of-Thermodynamics   There are some misnomers and misconceptions about what is heat and what is
work; the recognition of heat and work is even more difficult when it comes to
categorize energy as heat or work. Since both heat and work are energy the
name-confusion does not make much difference from engineering point of view,
but re-defining `heat' and `work' in the right-perspective of
second-law-of-thermodynamics \cite {ref1} is necessary to revise our
understanding at fundamental level. It is concluded that `heat is the energy
carried by mass-less \textit{photons} whereas work is energy carried by
mass-ive material \textit{fermions}'. Revised understanding of heat and work in
this way has far reaching consequences in Physics [2-4]. The present paper lays
emphasis on re-defining heat and work, removing the prevailing misconception,
talks about single photon interaction and heat property of photon. Also,
interestingly, it is noted that different fields of study such as
`Thermodynamics' and `Relativity' are interlinked.

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The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
1
The categories of this paper are: cs