When a gas gets heated it expands, and this expansion can be used to do work like moving a piston in an combustion engine. These videos cover related topics such as isothermal, isometric, and diabatic processes as well as the laws of thermodynamics.
15559_Specific_heat_and_latent_heat_of_fusion_and_vaporization.html
15562_First_law_of_thermodynamics_problem_solving.html
15563_PV_diagrams_part_1_Work_and_isobaric_processes.html
15561_First_law_of_thermodynamics.html
15564_PV_diagrams_part_2_Isothermal_isometric_adiabatic_processes.html
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