Experiment to investigate the relationship between temperature and volume at constant pressure

Law of Gay-Lussac for ideal gases

The law of Gay-Lussac describes the relationship between an increase in temperature and the resulting increase in volume at constant pressure (isobaric process). Learn more about it in this article. Isobaric process If...
Operating principle of a heat pump (conversion of work into heat)

The process quantities: Heat and work

Work and heat are process quantities that describe the process of a supply of energy ("energy in transit")! Learn more about it in this article. Work and heat transferred to a substance Energy...
Increasing the air temperature by doing work on the gas while inflating a bicycle tire with an air pump

Internal energy of ideal gases

In ideal gases, the change in internal energy is directly related to the change in temperature. Learn more about the relationships in this article. Simplified assumptions for ideal gases In thermodynamics, gases play...
Turbofan engine of an airplane

Thermodynamic systems

A thermodynamic system is a confined space of matter (e.g. gas) within which thermodynamic processes take place. The system boundary separates the system from the environment. Learn more about it in...
Experiment to investigate the relationship between change of internal energy and temperature change in ideal gases

Calculation of the internal energy for ideal gases

First law of thermodynamics In the article Internal energy of ideal gases it was explained in detail that in ideal gases only the kinetic energy of the gas molecules exists as internal...