Question

3-134 A 300-m3 rigid tank is filled with a saturated liquid-vapor mixture of water at 200 kpa. 451 kg 556 kg 300 kg 331 kg 195 kg

a) Determine the specific volume of the mixture.
b) Calculate the mass of the vapor phase.

Answer 1

The specific volume of the mixture requires the total mass, which was not provided. Additionally, the mass of the vapor phase cannot be calculated without knowing the mixture's quality or total mass.

Step-by-step explanation:

To answer the student's question:

1. Determine the specific volume of the mixture: The specific volume (v) is the volume per unit mass, which can be found by dividing the total volume of the tank by the total mass of the water. To do so, we need the mass of the mixture, but this has not been provided directly in the question.
2. Calculate the mass of the vapor phase: Assuming the question pertains to the mass of the vapor in the mixture, we would need the quality (x) of the mixture, which is the mass fraction of vapor in the mix. This is typically found using a steam table for saturated water at the given pressure. Without the mass of the mixture or the quality, we cannot calculate the mass of the vapor phase.

Without the total mass of the liquid-vapor mixture or further details, we are unable to complete the calculations for both parts of the question.