Question

You have water in a rigid, closed container. The water is initially a saturated mixture at 150 °C. The volume of the container is 0.1 m3. You heat the water until it reaches the critical point. What remains constant during this process? Sketch a Tv diagram, including the saturation dome, and draw the process on your sketch. Label the initial state as 1, and the final state as 2. What is the total mass of the water? What is the initial quality of the water?

Answer 1

Here in this problem, the container is rigid so volume is constant during the process and when the container is heated the pressure and temperature reached critical condition and with the help of specific volume at the critical condition we find mass in the container .

and by equating specific volume at starting and final condition we get the condition of the water at the initial state.

comment if any query.

As containe is rigid and closed initial condition of watenie T = 158c Volume, V=Olm? Critical By adding heat final condition is Condition achieved ne P = 22.064 MPa I = 373.705°c Specific volume, v=0.0036475 mlkg Q8 Containee is rigid so, volume during Process is constant. -- - V=constar -- - saturated Vapour line saturated 1 liquid coeur. mass = Totos volume specific volume 0.1 0.0036475 =

va va of T=isoc, v=0.001090so Vg,=0.39a45 wy, tx (vo, vx.= 0.0051ss 0.ooloroso to (0.39245 -0.00109 oso) = 0.005155 XX ZA 0.3913595 = 4.0645x15 x=0.01038)