Question

Asked Feb 15, 2019

A partition divides an insulated tank into two parts which are not equal. One part of the tank contains 5 kg of compressed liquid water at 65°C and 600 kPa while the other part is evacuated (Hint: For compressed liquids, if tables are not available, use properties of the saturated liquid at the specified temperature). The partition is then removed, and the water expands to fill the entire tank. Determine the final temperature of the water and the volume of the tank for a final pressure of 20 kPa.

Step 1

Given, m= 5kg

Temperature, T_{1}= 65° C

Pressure, P_{1}=600 KPa

Pressure, P_{2}=20 KPa

T_{2}=?

V_{2}=?

Step 2

From Ist law of thermodynamics,

As no heat and work transfer therefore the internal energy is kept constant.

Step 3

Now, obtaining the properties of water from steam t...

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