Heat Capacity and Temperature change

A.Carpenter

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

Bill92

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.

A.Carpenter

oh cheers, is that any better? i changed them

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Bill92	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.