Publication Date
In 2024 | 0 |
Since 2023 | 0 |
Since 2020 (last 5 years) | 0 |
Since 2015 (last 10 years) | 1 |
Since 2005 (last 20 years) | 1 |
Descriptor
Efficiency | 1 |
Engines | 1 |
Heat | 1 |
Scientific Principles | 1 |
Thermodynamics | 1 |
Source
European Journal of Physics… | 1 |
Author
Kaufman, Richard | 1 |
Publication Type
Journal Articles | 1 |
Reports - Evaluative | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Kaufman, Richard – European Journal of Physics Education, 2019
The first law of thermodynamics does not forbid heat engines with 100% thermodynamic efficiency; it is the second law of thermodynamics which states that heat engines cannot obtain 100% efficiency. Can the first law ever show this second law result? Yes. We show that the first law alone can show that some heat engines cannot achieve efficiencies…
Descriptors: Thermodynamics, Scientific Principles, Heat, Efficiency