Why can't I convert temperature units using simple conversions?

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SUMMARY

The discussion centers on the challenges of converting temperature units, specifically from Kelvin (K) to Fahrenheit (F). The user initially attempted a direct conversion using the formula =1 K * (1 C/ 274.15 K) * (33.8 F / 1 C), which yielded incorrect results. The correct approach involves using the formula T(K) = {5/9[T(F) -32]} + 273.15, highlighting the need for understanding the linear offsets and differing scales between Kelvin, Celsius, and Fahrenheit. The conversation emphasizes the importance of using appropriate equations for accurate temperature conversions.

PREREQUISITES
  • Understanding of temperature scales: Kelvin, Celsius, and Fahrenheit
  • Familiarity with linear equations and their applications in unit conversions
  • Knowledge of the specific conversion formulas between temperature units
  • Basic mathematical skills for manipulating equations
NEXT STEPS
  • Study the derivation of the temperature conversion formulas for K, C, and F
  • Learn about the concept of linear offsets in different measurement scales
  • Explore practical applications of temperature conversions in scientific contexts
  • Investigate tools or software that assist in unit conversions, such as Katmar Software's conversion tool
USEFUL FOR

This discussion is beneficial for students, educators, and professionals in scientific fields, particularly those dealing with thermodynamics, physics, and engineering, who require accurate temperature conversions and a deeper understanding of unit relationships.

rootX
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Why I cannot convert 1 K to say 1 F using these conversions:
=1 K * (1 C/ 274.15 K) * (33.8 F / 1 C )?

I get correct answer only if I substitute F in K-C formula for C:
T(K) = {5/9[T(F) -32]}+273.15

Thanks.

P.S. just solved another question using the conversion units provided ..
http://www.katmarsoftware.com/gconvals.htm
 
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You want to convert degrees K to degrees F? Each of these temperature scales have linear offsets with respect to each other. The K and C scales have the same step per degree, but are offset from each other. The K and F scales have different steps (lke the 5/9 factor that you list in the answer), and they are offset. That is why you need to use an equation more like the 2nd one to convert from F to K and visa-versa.
 
Thanks,
I thought of that..
but as all other units co-incidently can be converted using that first way, so I got confused...
 

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