Thermodynamics/Entropy Question

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SUMMARY

The discussion revolves around calculating the increase in entropy produced by an 82-kg parachutist descending 350 meters at a constant speed, with an air temperature of 21 degrees Celsius. The relevant equation used is S = Q/T, where Q represents the heat transfer and T is the temperature in Kelvin. The participant calculates the work done using W = mgh, resulting in 281,547 J. The participant seeks guidance on determining the heat transferred and the appropriate temperature to use in the entropy calculation.

PREREQUISITES
  • Understanding of thermodynamic principles, specifically entropy.
  • Familiarity with the equation S = Q/T for entropy calculation.
  • Knowledge of gravitational potential energy calculation using W = mgh.
  • Basic understanding of temperature conversion from Celsius to Kelvin.
NEXT STEPS
  • Research the concept of heat transfer in thermodynamics.
  • Learn how to convert temperatures from Celsius to Kelvin accurately.
  • Explore the implications of constant speed on energy and entropy calculations.
  • Investigate the relationship between work done and heat transfer in thermodynamic systems.
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Students studying thermodynamics, physics enthusiasts, and anyone interested in understanding entropy calculations in real-world scenarios.

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Homework Statement


An 82-kg parachutist descends through a vertical height of 350 m with constant speed. Find the increase in entropy produced by the parachutist, assuming air temperature of 21 degrees C.

2. Relevant Equation
S = Q/T

The Attempt at a Solution


I believe I can find work via W = mgh or (82)(9.81)(350) = 281,547 J. What can I do from there.

Thanks in advance.
 
Last edited:
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Can I assume the body temperature is 37 degrees C? Do I need to? I cannot figure out how to find hot temperature and heat transfered. Are there any ideas on how I can convert W in this situation into something useful to further the problem? Any hints towards the right direction would be appreciated.
 

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