Question

In: Mechanical Engineering

An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...

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

(a) the final temperature, in K.

(b) the final pressure, in bar.

(c) the amount of entropy produced, in kJ/K.

Solutions

Expert Solution


Related Solutions

An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...
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 (a) the final temperature, in K. (b) the final...
(THERMODYNAMICS) A vertical cylinder fitted with a frictionless piston contains 1.5 kg of H2O initially at...
(THERMODYNAMICS) A vertical cylinder fitted with a frictionless piston contains 1.5 kg of H2O initially at 100 °C, 400 kPa.  If the volume of the system reaches 0.5 m3, the piston hits a set of stops and is restrained from further upward travel. The system is heated to 200 C. (Use saturated water tables, steam tables, and superheated tables as necessary) a)   If the piston reaches the stops, determine the temperature and pressure when the piston first touches but exerts no force...
An insulated cylinder fitted with a movable piston to maintain constant pressure initially contains 100 g...
An insulated cylinder fitted with a movable piston to maintain constant pressure initially contains 100 g of ice at -10 C. Heat is supplied to the contents at a constant rate by a 100 W heater. Make a graph showing temperature of the cylinder contents as a function of time starting at t = 0, when the temperature is -10 C and ending when the temperature is 110 C. Let c = 2.0 kJ/kg K for specific heat of ice...
A 10 kg steam initially at 2 MPa saturated vapor is inside an insulated piston cylinder....
A 10 kg steam initially at 2 MPa saturated vapor is inside an insulated piston cylinder. The cylinder has a bottom valve. As this valve opens, steam at 800 kPa and 200C exits while the steam inside the tank has 400kPa saturated vapor. Find the exit mass of steam from the cylinder in kg.
Two gaseous systems in a cylinder are separated by a frictionless movable piston. The cylinder and...
Two gaseous systems in a cylinder are separated by a frictionless movable piston. The cylinder and piston are diathermal. Which of the following statements are true? The systems are in equilibrium with respect to pressure only. The systems are in equilibrium with respect to temperature only. The systems are in equilibrium with respect to pressure and temperature. The systems are in equilibrium with respect to pressure, temperature and composition.
One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder...
One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder device. Using the Steam Tables, answer the following: Is the heat needed to vaporize the water to steam equal to the change in enthalpy? Or TDS? To calculate the work done by the steam, is the first law of thermodynamics equation or the general equation for work applicable? Is the entropy generation equal to the change in entropy of the water? Does the heat...
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,
An insulated tank, fitted with a freely moving frictionless piston, has an initial volume of 1...
An insulated tank, fitted with a freely moving frictionless piston, has an initial volume of 1 m3 and contains 20 kg of refrigerant 134a at 200 kPa. A stirrer with a rotation rate of 300 rpm and a torque of 15 J/rotation is included in the tank. Find the time required for the refrigerant to evaporate completely. Ans= [73.36 minutes]
One kg of water in a piston-cylinder assembly, initially at 1.5 bar and 200 C, cools...
One kg of water in a piston-cylinder assembly, initially at 1.5 bar and 200 C, cools at constant pressure with no internal irreversibilities to a final state where the water is a saturated liquid. For the water as the system, determine the work, the heat transfer, and the amounts of exergy transfer accompanying work and heat transfer, each in kJ. Let T0 = 20 °C, p0=1 bar and ignore the effects of motion and gravity. THERE ARE SOME DIFFERENT ANSWERS...
A piston-cylinder device, whose piston is resting on a set of stops, initially contains 2 kg...
A piston-cylinder device, whose piston is resting on a set of stops, initially contains 2 kg of air at 300 kPa and 27ºC. The mass of the piston is such that a pressure of 600 kPa is required to move it upward. Heat is now transferred to the air until its volume doubles. a) Determine the work done by the air and b) the total heat transferred to the air during this process. c) Also, sketch the process on a...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT