0.0602kg×389.1 J 〖kg〗^(-1) K^(-1) (297.15-291.15)+0.0793kg+4184 J kg^(-1) K^(-1) (297.15-291.15)-0.0272kg×4184 J kg^(-1) K^(-1) (291.15K-273.15)
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.