Problem 5.135 An insulated 0.15-m3 tank contains helium at 3 MPa and 130°C. A valve is...

Problem 5.135 An insulated 0.15-m3 tank contains helium at 3 MPa and 130°C. A valve is now opened, allowing some helium to escape. The valve is closed when one-half of the initial mass has escaped. Determine the final temperature and pressure in the tank.

Expert Solution

genius_generous answered 1 year ago

An insulated, rigid tank whose volume is 0.5 m3 is connected by a valve to a...

An insulated, rigid tank whose volume is 0.5 m3 is connected by a valve to a large vessel holding steam at 40 bar, 480°C. The tank is initially evacuated. The valve is opened only as long as required to fill the tank with steam to a pressure of 20 bar. Determine: (a) the final temperature of the steam in the tank, in °C, the final mass of the steam in the tank, in kg, and (b) the amount of entropy...

An insulated rigid tank having a 0.2 m3 volume initially contains air at 400 kPa and...

An insulated rigid tank having a 0.2 m3 volume initially contains air at 400 kPa and 313 K. The amount of paddle-wheel work done on the system is 200 kJ. Calculate the nearest value of entropy change a. 0.66 kJ/K b. 0.88 kJ/K c. None d. 0.44 kJ/K e. 0.33 kJ/K

A 5 m3 tank contains superheated steam at 300°C and 22500 mmHg. The tank (and the...

A 5 m3 tank contains superheated steam at 300°C and 22500 mmHg. The tank (and the steam inside) is cooled until the pressure inside is reduced to 2 bar. At this point, liquid water and saturated steam coexist together in the tank. How much heat was removed from the tank, what is the final temperature, and how many kilograms of steam condensed in the process?

A 10.0 m3 tank contains steam at 250°C and 10.0 bar. The tank and its contents...

A 10.0 m3 tank contains steam at 250°C and 10.0 bar. The tank and its contents are cooled until the pressure drops to 1.8 bar. Some of the steam condenses in the process. (a) How much heat was transferred from the tank? (b) What is the final temperature of the tank contents? (c) How much steam condensed (kg)?

A well-insulated tank of 50 m3 volume initially contains 16,000 kg of water distributed between liquid...

A well-insulated tank of 50 m3 volume initially contains 16,000 kg of water distributed between liquid and vapor phases at 25°C. Saturated steam at 1500 kPa is admitted to the tank until the pressure reaches 800 kPa. What mass of steam is added (kg)?

A tank that initially contains H2O at 0.05 MPa and 100 ºC, is connected to a...

A tank that initially contains H2O at 0.05 MPa and 100 ºC, is connected to a water vapor line at 0.60 MPa and 200 ºC and is filled to a level where 90% (on a volumetric basis) is liquid. The 1 m3 tank is kept at 100 ºC during the process. Determine the quality of the gas in the second phase, the input mass in (kg) and the heat transfer, in kJ.

A rigid, well-insulated tank contains wet steam (20:80 wt% liquid:vapor) at 200 ◦C. The wet steam...

A rigid, well-insulated tank contains wet steam (20:80 wt% liquid:vapor) at 200 ◦C. The wet steam is withdrawn from the tank until the ﬂuid remaining in the tank is at 150 ◦C. The process is carried out slowlysuchthatinternalgradientsarenegligibleinsidethetank. Determineattheendofthisprocess: (a) The pressure in the tank. (b) The mass fraction of vapor and liquid in the tank. (c) The fraction of total water (liquid and vapor) present initially that was withdrawn

A rigid, well-insulated tank contains wet steam (20:80 wt% liquid:vapor) at 200◦C. The wet steam is...

A rigid, well-insulated tank contains wet steam (20:80 wt% liquid:vapor) at 200◦C. The wet steam is withdrawn from the tank until the fluid remaining in the tank is at 150◦C. The process is carried out slowly such that internal gradients are negligible inside the tank. Determine at the end of this process: (a) The pressure in the tank. (b) The mass fraction of vapor and liquid in the tank. (c) The fraction of total water (liquid and vapor) present initially...

A house has well-insulated walls. It contains a volume of 90 m3 of air at 295...

A house has well-insulated walls. It contains a volume of 90 m3 of air at 295 K. (a) Consider heating it at constant pressure. Calculate the energy required to increase the temperature of this diatomic ideal gas by 1.5�C. (b) If this energy could be used to lift an object of mass m through a height of 2.3 m, what is the value of m?

A rigid insulated tank is initially divided into two sections by a partition. One side contains...

A rigid insulated tank is initially divided into two sections by a partition. One side contains 1.0 kg of saturated-liquid water initially at 6.0 MPa, and the other side is evacuated. The partition is broken, and the fluid expands into the entire container. The total volume is such that the final equilibrium pressure is 3.0 MPa. Determine a) the initial volume of the saturated liquid in liters, b) the total volume of the entire tank in liters,

Question