A 400-G Block of Iron at 400°C Is Dropped into a Calorimeter

Multiple Choice

A 400-g block of iron at 400°C is dropped into a calorimeter (of negligible heat capacity) containing 60 g of water at 30°C.How much steam is produced? The latent heat of vaporization of water is 22.6 × 10⁵ J/kg and its specific heat capacity is 4186 J/kg ∙ K.The average specific heat of iron over this temperature range is 560 J/kg ∙ K.

A) 22 g
B) 33 g
C) 42 g
D) 54 g
E) 59 g