Calculating entropy generation of a process

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SUMMARY

The discussion focuses on calculating entropy generation in a thermodynamic process involving a temperature change from T1 to T2 after adding heat Q from a reservoir at 4000K. The formula for entropy generation is established as Sgen = S2 - S1 - (Q/T), with the temperature T used in the Q/T term being 4000K. This clarification is crucial for accurate entropy calculations in thermodynamic systems.

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albertov123
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Lets say we have T1. From a reservoir 4000K, Q is added and that makes the temperature T2.
How do we calculate the entropy generation in a process like that?

Isn't it Sgen=S2 - S1 - (Q/T)

But which temperature we will use in the (Q/T)? T1, T2 or 4000K?
 
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