Question
Can you design a heat Engine of 100% efficiency? Explain your answer.
✓
Answer
The efficiency of a heat engine is $\eta=1-\frac{\text{T}_2}{\text{T}_1}$
The efficiency of heat engine will be 100% or 1 if,
T2 = 0K
Since temperature equal to 0K cannot be reached, so a heat engine cannot have 100 % efficiency.
The efficiency of heat engine will be 100% or 1 if,
T2 = 0K
Since temperature equal to 0K cannot be reached, so a heat engine cannot have 100 % efficiency.
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