How Does the Efficiency Formula Change for Reversible Heat Engines?

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The efficiency formula for a normal heat engine is expressed as n=1-(q1/q2), while for a reversible heat engine, it is n=1-(t1/t2). The temperature-based formula provides the theoretical maximum efficiency for a given system, whereas the heat-based formula reflects the actual efficiency achieved. Understanding these differences is crucial for analyzing heat engine performance. The discussion emphasizes the significance of using temperature versus heat in calculating efficiency. This distinction is essential for thermodynamic studies and applications.
ajayguhan
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efficiency n=1 -(q1/q2) for a normal heat engine

But how efficiency n=1 -(t1/t2) ? for reversible heat engine
 
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When using the temperatures, you find the theoretical highest efficiency possible for a specific system.

When using the "Q" (heat), you find the actual efficiency of the system.
 

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