Purpose
The demonstration set is intended for the experimental demonstration of the basic laws studied on the topic of "Molecular Physics", familiarizing students with such concepts as isoprocesses in an ideal gas, gas work, cyclic process, saturated steam.

Areas of knowledge and application
The demonstration set is used to conduct demonstration experiments in the study of gas laws, the equation of state of an ideal gas, the properties of vapors and air humidity, performed using digital volume, temperature and absolute pressure sensors, with signal recording on a computer.

What will the child learn?
The demonstration set will allow you to complete all stages of scientific research: demonstrate the qualitative patterns of the observed process occurring in gas (more - less, increases - decreases - does not depend), conduct quantitative studies with the measurement of quantities, the formation of an observation table, the construction of a graph and comparison of the obtained experimental data with graphs of various functions, and process data using the linearization method.
In addition, the set includes computational modeling of the process of gas compression and expansion, taking into account the influence of heat exchange.

Updates
The demonstration kit allows you to teach the main stages of conducting an experimental study, and also allows you to conduct joint research with students.
The set includes three units for isothermal, isobaric and isochoric processes, which have built-in volume and temperature sensors that allow recording gas parameters during changes in its state. The design of the units ensures the constancy of one of the gas parameters while varying the other two parameters. An absolute pressure sensor is used to measure gas pressure.

Methodological support
The methodological manual contains instructions for performing 8 experiments on the assembled installations. The description of the experiments is accompanied by a photo of the installation and screenshots of the software, showing what results the teacher will receive during the demonstration.

Software for conducting demonstration experiments
The software of the set contains 8 scenarios (divided into topics and sections) for conducting demonstration experiments in the study of gas laws, the equation of state of an ideal gas, the properties of vapors and air humidity, carried out using digital volume, temperature and absolute pressure sensors, with signal recording on a computer.
Each scenario includes optimal settings for the sensors used to conduct the experiment and for subsequent processing of the collected data.

Software for conducting computational modeling
The calculation model for gas compression and expansion provides calculation of gas compression and expansion processes taking into account the influence of heat exchange.
When modeling gas compression and expansion, the program allows you to set the initial parameters of the gas - the number of moles of gas in the reservoir and the number of atoms in the molecule.