A 100-Kg Piece of Iron at 655°C Is Dropped into a a Calorimeter

question 39

Multiple Choice

A 1.00-kg piece of iron at 655°C is dropped into a calorimeter of negligible heat capacity containing 50.1 g of water at 30°C. What is the final temperature of the system? The specific heat of iron is 448 J/(kg K) . the specific heat of steam is 2010 J/(kg K) . and the latent heat of vaporization of water is 22.6 × 10⁵ J/kg.

• A) 100°C
• B) 210°C
• C) 320°C
• D) 430°C
• E) 635°C