Is this correct converting (I am confuse)

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Homework Help Overview

The problem involves converting a temperature difference of 460 C° into Fahrenheit and Kelvin scales. Participants are discussing the implications of significant figures and the nature of temperature differences.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants are examining the correctness of the original poster's calculations and questioning the significance of the temperature difference versus absolute temperatures. There is discussion about the appropriate use of significant figures and whether the initial temperature value is accurate.

Discussion Status

The discussion is ongoing, with various interpretations being explored. Some participants suggest that the temperature difference in Kelvin is equivalent to that in Celsius, while others are questioning the original temperature value provided. There is no explicit consensus on the correct answers yet.

Contextual Notes

Participants are considering the rules around significant figures and the specific nature of temperature differences, which may affect how the conversions are approached. There is uncertainty regarding the initial temperature value and its implications for the calculations.

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Homework Statement



The temperature difference between the inside and the outside of an automobile engine is 460 C°.

a) Express this temperature difference on the Fahrenheit scale.

b) Express this temperature difference on the Kelvin scale.

Homework Equations



T_F = 9/5T_c + 32
T_K = T_c + 273.15


The Attempt at a Solution


a) i got 860
b) i got 733.15

why is it marking this incorrect what am i doing wrong?
 
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do you have the right amount of significant figures? maybe it asks for 4 or just 3
 
im pretty sure I am using the right significant figure since from C to F it gave 860 exact and to convert C to K its basically adding 273.15 i believe. it say my answer is 10%-100% differ to the correct answer.
 
460 degrees celsius seems a bit high. Are you sure it's not 46.0 degrees celsius?
 
Yea, I am pretty sure its 460 degrees celsius since i did a direct copy and paste.
 
Hey soo the answer would be 450 k and 810 F
Tf = 9/5*450 C
=810 F
Kelvin = celsius hence 450C =450K temp differences are the same change is constant
 
Since you're expressing a difference in temperature, madhiab would be right in saying that only the the factor difference should be important. So the change in temperature in Kalvin would be exactly the same as the temperature difference in degrees Celsius. However, use the same factor you used above without changing the initial value (notice it only asks for a change) to convert to fahrenheit.
 
the question is DIFFERENCE in temp. therefore the +273.15 is not needed, as that would be the Teperature of an object at 460C. Fahrenheit i have no idea as i use metric. also since kelvin interval = celsius interval therefore no need to convert (for diff in temperature).
 

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