[darkness1102]

I have done some exercises in general chemistry book. As I studied, the specific heat capacity is different for different substances. But in exercises, they assume that the heat capacity of solution os 4,18kJ (equal to that of water). The solution includes water and Nacl. Can anyone explain to me?

[Borek]

Diluted water solutions have specific heat capacity similar to that of a pure water (which is a dominating component of the mixture).