Section: Thermodynamics | Marks: 2
A rigid tank is connected through a valve to steam mains supplying steam at $1\text{ MPa}$, $400^\circ\text{C}$. Heat is transferred from the tank to the surroundings, and the valve is closed when the total amount of cooling is $2000\text{ kJ}$. The energy contained in the tank is the same before and after the process. Neglecting potential and kinetic energy changes, the mass of the steam that enters the tank is
- A. 0.676 kg
- B. 6.76 kg
- C. 0.612 kg
- D. 6.12 kg