What Is the Minimum Amount of Energy Required to Completely

Multiple Choice

What is the minimum amount of energy required to completely melt a 7.25-kg lead brick which has a starting temperature of 18.0 °C? The melting point of lead is 328 °C. The specific heat capacity of lead is 128 J/(kg · C°) ; and its latent heat of fusion is 23 200 J/kg.

A) 1.20 × 10⁵ J
B) 1.68 × 10⁵ J
C) 2.88 × 10⁵ J
D) 4.56 × 10⁵ J
E) 7.44 × 10⁵ J