Question
In: Mechanical Engineering
A rigid tank of volume 0.75 m3 is initially evacuated. A hole develops in the wall,...
A rigid tank of volume 0.75 m3 is initially evacuated. A hole develops in the wall, and air from the surroundings at 1 bar, 30°C flows in until the pressure in the tank reaches 1 bar. Heat transfer between the contents of the tank and the surroundings is negligible. Determine the final temperature in the tank, in °C.
Solutions
samet mamat answered 2 years agoRelated Solutions
A rigid tank of volume 0.63 m3 initially has some air inside at 0.5 bar and...
A rigid tank of volume 0.63 m3 initially has some air inside at
0.5 bar and 300 K. A hole develops in the wall, and air from the
surroundings at 1 bar, 300 K flows in until the pressure in the
tank reaches 1 bar. Heat transfer between the contents of the tank
and the surroundings is negligible. Determine the final temperature
in the tank, in K. What is the entropy generation of the process?
(Please treat the air as...
A rigid tank of volume 0.63 m3 initially has some air inside at 0.5 bar and...
A rigid tank of volume 0.63 m3 initially has some air inside at
0.5 bar and 300 K. A hole develops in the wall, and air from the
surroundings at 1 bar, 300 K flows in until the pressure in the
tank reaches 1 bar. Heat transfer between the contents of the tank
and the surroundings is negligible. Determine the final temperature
in the tank, in K. What is the entropy generation of the
process?
(Please treat the air as...
A rigid tank of volume 0.63 m3 initially has some air inside at 0.5 bar and...
A rigid tank of volume 0.63 m3 initially has some air inside at
0.5 bar and 300 K. A hole develops in the wall, and air from the
surroundings at 1 bar, 300 K flows in until the pressure in the
tank reaches 1 bar. Heat transfer between the contents of the tank
and the surroundings is negligible. The final temperature is 350 K.
Use the transient state entropy balcance to find the entropy
generation of the process
A rigid tank of volume 0.3 m3 contains water initially at its critical point. The water...
A rigid tank of volume 0.3 m3 contains water
initially at its critical point. The water is now cooled to
150°C
a) What mass of water is in the tank?
b) Has the average specific volume of this water changed during
the cooling process?
c) Find the mass of liquid water and the mass of water vapor in
the tankat the end of the process.
d) Find the volume of liquid water and the volume of water vapor
in the...
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
An adiabatic tank, 0.5 m3, is initially evacuated and charged with steam at 500 kPa and...
An adiabatic tank, 0.5 m3, is initially evacuated and charged
with steam at 500 kPa and 300 C. The final tank pressure is 500
kPa. Determine the final temperature and the entropy
production.
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...
A rigid tank contains hydrogen and has a volume of 4.1 ft3. It is initially at...
A rigid tank contains hydrogen and has a volume of 4.1
ft3. It is initially at 87°F and 1,072 psia. Hydrogen
then leaks from the tank until it is 76°F and 158 psia. How much
heat transfer occurred into the tank, in Btu. Answer negative if
heat left the tank.
A rigid reservoir with 3 m3 volume is connected to a supply line. Initially the valve...
A rigid reservoir with 3 m3 volume is connected to a supply
line.
Initially the valve is closed and the reservoir contains steam at
800 kPa, and x = 0.8 quality.
The valve is opened and steam is allowed until the final pressure
is 2.5 MPa and 250 oC.
a- Determine the mass of steam entered to the reservoir.
b- If the pressure is 3.5 MPa and temperature is 350oC at the
supply line, evaluate the
transferred heat in kJ,...
A rigid reservoir with 3 m3 volume is connected to a supply line. Initially the valve...
A rigid reservoir with 3 m3 volume is connected to a supply
line.
Initially the valve is closed and the reservoir contains steam
at 800 kPa, and x = 0.8 quality.
The valve is opened and steam is allowed until the final
pressure is 2.5 MPa and 250 C.
a- Determine the mass of steam entered to the reservoir.
b- If the pressure is 3.5 MPa and temperature is 350 C at the
supply line, evaluate the transferred heat in...
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