Answer:
The efficiency is 0.33, or 33%.
Explanation:
From the thermodynamics equations, we know that the formula for the efficiency of a heat engine is:
[tex]\eta=1-\frac{Q_2}{Q_1}[/tex]
Where η is the efficiency of the engine, Q_1 is the heat energy taken from the hot source and Q_2 is the heat energy given to the cold object. So, plugging the given values in the formula, we obtain:
[tex]\eta=1-\frac{200J}{300J}=0.33[/tex]
This means that the efficiency of the heat engine is 0.33, or 33% (The efficiency of an engine is dimensionless).
