contestada

Five kg of water is contained in a piston-cylinder assembly, initially at 5 bar and 240°C. The water is slowly heated at constant pressure to a final state. If the heat transfer for the process is 2960 kJ, determine the temperature at the final state, in °C, and the work, in kJ. Kinetic and potential energy effects are negligible.

Respuesta :

Answer:

The final temperature of water is 381.39  °C.

Explanation:

Given that

Mass of water = 5 kg

Heat transfer at constant pressure Q = 2960 KJ

Initial temperature = 240 °C

We know that heat transfer at constant pressure given as follows

[tex]Q=mC_p\Delta T[/tex]

We know that for water

[tex]C_p=4.187\ \frac{KJ}{kg.K}[/tex]

Lets take final temperature of water is T

So

[tex]Q=mC_p\Delta T[/tex]

[tex]2960=5\times 4.187(T-240)[/tex]

T=381.39  °C

So the final temperature of water is 381.39  °C.

Otras preguntas