Question

For h2o, determine the specific volume at the indicated state, in m3/kg. locate the states

Answer 1

We need to find the specific volume of water at the given conditions and to draw the T-v diagram.

The temperature of water T = 400°C

The pressure of water p = 20 MPa

The specific volume from the Table A-4

Specific volume v = 0.00994 m3/kg

The saturated temperature (at 20 MPa) Tsat = 365.81°C

The critical temperature of water Tc = 374.15°C (Table A-1)

The state is superheated water vapor.

Part (b)

Step 2 of 3:

We need to find the specific volume of water at the given conditions and to draw the T-v diagram.

The temperature of water T = 40°C

The pressure of water p = 20 MPa

The specific volume from the Table A-5

Specific volume v = 0.992/103 m3/kg

The saturated temperature (at 20 MPa) Tsat = 365.81°C

The state of the water is compressed liquid water.

The T-v diagram is given by.

part c I will upload :-)