You have a pan made of ___ aluminum___ with a mass of 3040 grams. You are burning gas to heat the pan from __25oC___ to __150oC___. 1. Calculate how much heat (in joules) would be absorbed or released during this process.

2. How many calories would equal the joules absorbed or released during the process?

3. Identify the type of system is this: open, closed, or isolated. Explain how you know.
Open, because there is heat being released.

4. Identify and describe why this is either an endothermic or exothermic reaction.

5. If you changed your pan material to tin, how would that change heat (J) [include calculations]? Explain why that change would occur?