i am a junior physics teacher but i encounter a difficult problem to me 200g zero degree celsius ice mixed with 100g 100 degree celsius steam what is the state of the mixture? and how to calculate? I have calculate using final temperature T as assumption but the result is T = 160 (approx.) but i think it is not logical. because that 100g 100 degree celsius steam should give out energy . i dont think the final mixture will become 160 degree cel which is totally not logical.