Calculate the amount of heat required to heat a 3.5 kg gold bar from 21 degrees C to 37 degrees C. What would be the best way to work this problem? I don't know if I need to convert the kg to g.

Answer 1

First you must have the specific heat of gold. That may be in your problem or in tables in the back of your text. If not you can look it up on Google. Use it in joules/g*oC. Then
q = mass x specific heat x (Tfinal-Tinitial)
If specific heat is in grams*degreesC then convert kg to grams.