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Baby thermodynamics question

  • #1
I have come across a problem involving an interface temperature and I have no idea what an interface temperature even is although I'm guessing it's the temperature at the joining of two objects

The question has two metal rods connected together at one end, the other ends are kept at a and b degrees kelvin, assuming the rods are insulated to the outside world find the interface temperature and find the rate that the heat travels through the rods

I have no idea where to start here, I don't even have any books to consult. The physics books I do have are lifgarbagez mechanics which has nothing to do with beginner thermodynamics and stowe's introduction to statistical mechanics which talks about the partition function but nothing like this. I'm also pretty sure those books are at a higher level than this so...

If someone could give me a little nudge in the right direction, that'd be great!
 

Answers and Replies

  • #2
Andrew Mason
Science Advisor
Homework Helper
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This is a heat conductivity problem. The question is simply asking for the temperature of either rod at the joint. The joined ends of each rod will necessarily be at the same temperature since they are in thermal contact with each other.

AM
 
  • #3
Could you possibly link me to some relevant equations on this?
I really have no idea what I'm supposed to be trying to do here

I understand that the temperature should be the same at the ends of each rod but I don't know how to find what that temperature should be, nor how I could find the rate the heat travels through the rods from this
 
  • #4
Andrew Mason
Science Advisor
Homework Helper
7,566
330
Could you possibly link me to some relevant equations on this?
I really have no idea what I'm supposed to be trying to do here

I understand that the temperature should be the same at the ends of each rod but I don't know how to find what that temperature should be, nor how I could find the rate the heat travels through the rods from this
Are you studying heat transfer? Do you have a text book? Try: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html

AM
 

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