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Temperature Change

  • Thread starter planke
  • Start date
  • #1
5
0

Homework Statement


One day you notice that the outside temperature increased by 29° F between your early morning jog and your lunch at noon. What is the corresponding change in temperature in each of the following scales?

_____C
_____K


Homework Equations



Tc = (5/9)(Tf - 32)
T (kelvin) = Tc + 273.15


The Attempt at a Solution



Ti + 29F = Tf
Tf-Ti = 29F

Tc = (5/9)(29-32) = -1.66667C

I am confused to why this answer is incorrect.
 

Answers and Replies

  • #2
mgb_phys
Science Advisor
Homework Helper
7,774
12
If you are only interested in a change of temperature you don't care about the zero points of the scales, you just need to know how many F is a C - and so how many C in 29F
 

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