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Heat Capacity and Temperature change

  1. May 29, 2012 #1
    I know how to do heat capacity problems but i am unsure of how to do them when two materials are combined together. Here is the question. Any help would be great, thanks.

    A 5 kg pieces of low carbon steel at room temperature 25°C is placed into contact with a 300g piece of polyethylene at 180°C . What is the final temperature?

    Low carbon steel Cp = 480 j/kg.K
    Polyethylene Cp = 1.8 x 10^3 j/kg.K
     
    Last edited: May 29, 2012
  2. jcsd
  3. May 29, 2012 #2
    hey mate, just letting you know that your values with regard to each material have not come up correctly, there are just squares next to the numbers.
     
  4. May 29, 2012 #3
    oh cheers, is that any better? i changed them
     
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