Question

A rigid, insulated vessel is divided into two compartments connected by a valve. Initially, one compartment, occupying 1.0 ft3, contains air at 50 lbf/in2, 725oR, and the other, occupying 2.0 ft3, is evacuated. The valve is opened and the air is allowed to fill both volumes. Assume the air behaves as an ideal gas and that the final state is in equilibrium. Determine the final temperature of the air, in oR, and the amount of entropy produced, in Btu/oR.

Determine the amount of entropy produced, **in
Btu/ ^{o}R PLEASE**

Answer #1

A rigid, insulated vessel is divided into two compartments
connected by a valve. Initially, one compartment, occupying 1.0
ft3, contains air at 50 lbf/in2,
500oR, and the other, occupying 2.0 ft3, is
evacuated. The valve is opened and the air is allowed to fill both
volumes. Assume the air behaves as an ideal gas and that the final
state is in equilibrium.
Determine the final temperature of the air, in oR, and
the amount of entropy produced, in Btu/oR.

A rigid, insulated container is divided into three equal
compartments and contains an ideal gas. All are at a constant
temperature of 25 deg C. Compartment 1 is at a pressure of 1 bar,
Compartment 2 is at a pressure of 2 bars and Compartment 3 is at a
pressure of 6 bars. The partitions between compartments are removed
suddenly and the gas is allowed to reach equilibrium pressure in
the container. What will be temperature and pressure reached?
Explain...

Sixty pounds of carbon dioxide gas are contained in a 100-ft3
rigid, insulated vessel initially at 4 atm. An electric resistor of
negligible mass transfers energy to the gas at a constant rate of
12 Btu/s for 40 seconds. Use the ideal gas model and ignore the
effects of motion and gravity. Let To = 70°F, po = 1 atm.
-Determine the change in exergy of the gas, in Btu.

Two insulated containers are connected through an insulated line
and a valve that is closed. Both sides contain 1 kg of steam but
the left side is at 300 °C while the right side is at 200 °C. The
valve is opened, allowing both sides to mix and reach a common
temperature and pressure.
a) Is this process reversible?
b) What is the final pressure and temperature of the steam, if the
steam is treated as an ideal gas?
c)...

A rigid insulated tank is divided into two parts, one that
contains 1 kg of steam at 10 bar, 200 °C, and one that contains 1
kg of steam at 20 bar, 800 °C. The partition that separates the two
compartments is removed and the system is allowed to reach
equilibrium. What is the entropy generation?

An insulated cylinder is initially divided into halves by a
frictionless, thermally conducting piston. On one side of the
piston is 1 m3 of a gas at 300 K, 2 bar. On the other
side is 1 m3 of the same gas at 300 K, 1 bar.The piston
is released and equilibrium is attained, with the piston
experiencing no change of state. Employing the ideal gas model for
the gas, determine
(b) the final pressure, in bar.
(c) the amount...

Air is contained in a rigid, well-insulated container
of volume 3 m3. The air undergoes a process from
an initial state with a pressure of 200 kPa and temperature of 300
K. During the process, the air
receives 720 kJ of work from a paddle wheel. Model the air as an
ideal gas with constant specific
heats. Evaluate the specific heats at 300 K. Neglect changes in
kinetic energy and potential energy.
Determine the mass of the air in kg,...

A rigid copper tank, initially containing 1 m3 of air at 295 K,
4 bar, is connected by a valve to a large supply line carrying air
at 295 K, 15 bar. The valve is opened only as long as required to
fill the tank with air to a pressure of 15 bar. Finally, the air in
the tank is at 310 K. The copper tank, which has a mass of 20 kg,
is at the same temperature as the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 2 minutes ago

asked 4 minutes ago

asked 4 minutes ago

asked 5 minutes ago

asked 7 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 8 minutes ago

asked 10 minutes ago

asked 11 minutes ago