How Do You Calculate the Specific Heat Capacity of a Cupronickel Alloy?

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To calculate the specific heat capacity (SHC) of a Cupronickel alloy, the SHC values of its components, copper and nickel, are essential. The SHC of copper is 0.39 kJ/kg K, while nickel's is 0.54 kJ/kg K. Assuming a composition of 75% copper and 25% nickel, the theoretical SHC can be determined using a weighted average based on these proportions. Additionally, the Heat of Mixing must be considered, as it can affect the SHC and varies with temperature. This approach allows for a comparison between experimental results and theoretical values.
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Homework Statement



I have done an experiment in which I measured the specific heat capacity of a coin. I would like to compare the results to the actual value. I have found out that the coin is made of Cupronickel alloy (for simplicity let's assume it's just 75% copper and 25% nickel).

SHC of copper: 0.39 kJ/kg K
SHC of nickel: 0.54 kJ/kg K

Knowing the SHC values of the two elements (copper and nickel) how would I go about calculating the theoretical value of the SHC of the Cupronickel alloy, so that I can compare it to my experiment's results?
 
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Eleeist said:

Homework Statement



I have done an experiment in which I measured the specific heat capacity of a coin. I would like to compare the results to the actual value. I have found out that the coin is made of Cupronickel alloy (for simplicity let's assume it's just 75% copper and 25% nickel).

SHC of copper: 0.39 kJ/kg K
SHC of nickel: 0.54 kJ/kg K

Knowing the SHC values of the two elements (copper and nickel) how would I go about calculating the theoretical value of the SHC of the Cupronickel alloy, so that I can compare it to my experiment's results?

To do this, you need to know the Heat of Mixing, and how it varies with temperature.
 

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