posted by john .
What volume of 15 degree celsius water must be added to a 1.2KG piece of stainless steel at 85 degree celsius so that the final temperature is 35 degree celsius. assume the container in which the mixing takes place is perfectly insulated.
[mass H2O x specific heat H2O x (Tfinal-Tinitial)] + [mass steel x specific heat steel x (Tfinal-Tinitial)] = 0
mass H2O is the only unknown, solve for that.