A 0.2-m3 rigid tank initially contains steam at 8°C. At this state, 28% of the mass is in the liquid phase. The tank is connected by a valve to a supply line where steam at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the steam is allowed to enter the tank. When the pressure in the tank reaches 775 kPa, the entire steam in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of steam that has entered the tank, and (c) the heat transfer between the system and the surroundings. steam steam 1 MPa 100 °C 0.2 m steam

A 0.2-m3 rigid tank initially contains steam at 8°C. At this state, 28% of the mass is in the liquid phase. The tank is connected by a valve to a supply line where steam at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the steam is allowed to enter the tank. When the pressure in the tank reaches 775 kPa, the entire steam in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of steam that has entered the tank, and (c) the heat transfer between the system and the surroundings. steam steam 1 MPa 100 °C 0.2 m steam

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

A 0.2-m3 rigid tank initially contains steam at 8°C. At this state, 28% of the mass is in the liquid phase.
The tank is connected by a valve to a supply line where steam at 1 MPa, 100°C flows steadily. Now the
valve is opened slightly, and the steam is allowed to enter the tank. When the pressure in the tank reaches
775 kPa, the entire steam in the tank exists in the vapor phase only. At this point the valve is closed.
Determine (a) the final temperature in the tank, (b) the mass of steam that has entered the tank, and (c)
the heat transfer between the system and the surroundings.
steam
steam
1 MPa 100 °C
0.2 m3
steam

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