Khan Academy Static

In these videos and articles you'll learn how the first law of thermodynamics relates the change in internal energy of a gas, heat that enters the gas, and work done on the gas. PV diagrams will be discussed, as well as the four common thermal process; isobaric, isochoric/isovolumetric, isothermal, and isovolumetric processes. You'll also learn about how the second law of thermodynamics relates the entropy change to the multiplicity of microstates and the heat that enters a macroscopic system. The efficiency of a heat engine will also be explained.

10108_Proof_Volume_ratios_in_a_carnot_cycle.html

10106_Work_done_by_isothermic_process.html

10103_Work_from_expansion.html

10109_Proof_S_or_entropy_is_a_valid_state_variable.html

10112_Entropy_intuition.html

10110_Thermodynamic_entropy_definition_clarification.html

10107_Carnot_cycle_and_Carnot_engine.html

10115_Efficiency_of_a_Carnot_engine.html

10105_Proof_U_3_2_PV_or_U_3_2_nRT.html

10102_More_on_internal_energy.html

10117_Carnot_efficiency_3_Proving_that_it_is_the_most_efficient.html

10111_Reconciling_thermodynamic_and_state_definitions_of_entropy.html

10113_Maxwell_s_demon.html

10100_Quasistatic_and_reversible_processes.html

10101_First_law_of_thermodynamics_internal_energy.html

10114_More_on_entropy.html

10104_PV_diagrams_and_expansion_work.html

10116_Carnot_efficiency_2_Reversing_the_cycle.html

10099_Macrostates_and_microstates.html