the specific heat of platinum is 0.0311 cal/g celcius. How much heat is needed to raise 525 g of platinum from

Question

22.6 g degrees celcius to 154.5 degrees celcius?

Answer 1

If stuck with a problem like this, just go back to the definitions.

In this case, from the meaning of "specific heat":

Amount of heat needed = amount of material x specific heat x change in temperature

Just substitute into this equation. Your answer will be in calories because of the units you used in the data. If you want J, use

1 cal = 4.184 J