Science and world

HOW TO EXPLAIN THE MOLECULAR KINETIC THEORY
OF AN IDEAL GAS TO SCHOOLCHILDREN AND STUDENTS 
A.S. Negrash
1
, I.A. Golovin
2
, A.Ye. Batmanov
3 
1 
Candidate of Engineering Sciences, Co-chair of the Physics section, 
2 
4
th
year Student, 
3 
1
st
year Student 
1 
Moscow Society of Naturalists, 
2 
Moscow State University of Food Production, 
3 
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy (Moscow), Russia 
Abstract.
 
A variant of the presentation of the molecular kinetic theory (MKT) of an ideal gas (IG) in schools 
and universities is proposed. The concept of “single-molecule single-atomic ideal gas” (SMSAIG) is used. The shape of 
the vessel is assumed spherical.
 
The laws of the adiabatic process, the basic equation and the equation of state of 
SMSAIG are derived.
 
The algorithm of transition from the formulas of the SMSAIG MKT to the formulas of the IG 
MKT is being formed.
 
The principle of presentation of the material is "from simple to complex", the form of 
presentation is axiomatic.
 
The work is addressed to school students, students, physics teachers, methodologists and 
those who show interest in physics. 
Keywords:
 
molecular kinetic theory of an ideal gas, thermodynamics, ideal gas, "single-molecule" single-
atomic ideal gas, spherical vessel, adiabatic process, equation of state of a single-molecule ideal gas. 

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ISSN 2308-4804. Science and world. 2021. № 12 (100). Vol. II.
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