A steam boiler has a total volume of 4 m3. The boiler initially contains 3 m3 of liquid water and 1 m3 of equilibrium steam at 0.1 MPa. The boiler is turned on and heat is transmitted to the water and steam. Meanwhile, the inlet and outlet valves of the boiler remain closed. The safety valve escapes when the pressure reaches 5 MPa. How much heat is transmitted to the water and steam before I open the safety valve?

A steam boiler has a total volume of 4 m3. The boiler initially contains 3 m3 of liquid water and 1 m3 of equilibrium steam at 0.1 MPa. The boiler is turned on and heat is transmitted to the water and steam. Meanwhile, the inlet and outlet valves of the boiler remain closed. The safety valve escapes when the pressure reaches 5 MPa. How much heat is transmitted to the water and steam before I open the safety valve?

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