100g of cold iron is put in 20g of water @ 20 deg cel. when the thermal interaction was done water was 32deg f

Question

what was the initial and fianl temp of the iron?

Answer 1

OK...The final temperature of the iron and the water are both 32 degrees F or 0 degrees C.

In order to solve this question, you'll need to have the specific heat of iron (maybe somewhere in your book). Then you'll use the equations for heat gain and heat loss that look something like:

mc (T2-T1) = -m c (T2-T1)

Where one side is the iron and the other side is the water. m is the mass, c is the specific heat and T2 and T1 are the final and initial temperatures.