Two Kilograms of Water at 100°C Is Converted to Steam

Multiple Choice

Two kilograms of water at 100°C is converted to steam at 1 atm. Find the change in internal energy (in J) . (L_v = 2.26 × 10⁶ J/kg.)

A) 2.1 × 10⁴
B) 4.5 × 10⁶
C) 3.4 × 10⁵
D) 4.2 × 10⁶
E) 2.1 × 10⁶