Question

15.75g peice of iron absorbs 1086.75 joules of energy . The temp changes from 25c to 175c what is the heat compacity of the iron

Answer 1

I assume you mean the 'specific' heat capacity

its units are J/kg/K

so take the value for Joules, and divide by mass in kg, then divide that by temperature change in K

(Be sure to convert mass to kg)

Then check your answer against table to make sure it is 'sensible' (it does not need ot be identical to the given value - but it should be in the same order...)

(IF for some reason it does not mean 'specific' heat capacity, then do not divide by mass. Units are J/K)'