Asked by Anonymous

A technician makes a 5.0 kg metal object containing two parts£¬one of iron and the other of aluminum.If it takes 504kj to change the objects temperature from 25 celcius to 165celcius£¬what is the mass of each part£¿
Answered by bobpursley
heat=sum of Mal*Cal*deltaT+Mfe*Cfe*DeltaT

remember Mal+Mfe=5kg

you have two equations, two unknowns.
Answered by Anonymous
iron is 2 aluminum is 3
Answered by Anonymous
how do u do this
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