Question

What is the formula for calculating the efficiency of a heat engine?

Answer 1

Explanation:

The efficiency of a heat engine is defined as the ratio of the work output to the heat input into the system.

•   It is highly impossible to get an engine that is 100% efficient.
• A heat engine that is 100% efficient suggests that all the heat input into the system is used to do work completely.
• There is no heat loss.

      Efficiency = $\frac{work output}{heat input}$ x 100

Efficiency has no unit

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