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

question 28

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

---

Definitions:

24-Hour Schedule

A rotation or work schedule that covers all hours of the day across a team or installation, ensuring operations or service availability around the clock.

Output Contract

An agreement between a seller and a buyer where the seller agrees to sell all the production to the buyer, who in turn agrees to purchase the entire output.

Operating Schedule

A plan or timetable outlining the hours or periods a facility, service, or piece of equipment is in operation.

Civic Club

An organization of citizens focused on promoting community welfare, civic improvements, and social activities.