The efficiency of a heat engine is defined as the ratio of: (2023)
Practice Questions
Q1
The efficiency of a heat engine is defined as the ratio of: (2023)
Work done to heat absorbed
Heat rejected to heat absorbed
Work done to heat rejected
Heat absorbed to work done
Questions & Step-by-Step Solutions
The efficiency of a heat engine is defined as the ratio of: (2023)
Step 1: Understand what a heat engine is. A heat engine is a machine that converts heat energy into work.
Step 2: Identify the two main components of a heat engine: the hot reservoir (where the engine gets heat) and the cold reservoir (where the engine releases some heat).
Step 3: Know that the engine absorbs heat from the hot reservoir. This is the energy input.
Step 4: Learn that the engine does work using the absorbed heat. This is the useful output of the engine.
Step 5: The efficiency of the heat engine is calculated by taking the work done by the engine and dividing it by the heat absorbed from the hot reservoir.
Step 6: Write the formula for efficiency: Efficiency = (Work done by the engine) / (Heat absorbed from the hot reservoir).
