The spring-loaded piston–cylinder device shown in the figure is filled with 0.55 kg of water vapor...

The spring-loaded piston–cylinder device shown in the figure is filled with 0.55 kg of water vapor that is initially at 4 MPa and 400°C. Initially, the spring exerts no force against the piston. The spring constant in the spring force relation F = kx is k = 0.9 kN/cm and the piston diameter is D = 20 cm. The water now undergoes a process until its volume is one-half of the original volume. Calculate the final temperature and the specific enthalpy of the water. Use data from the steam tables

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

A spring-loaded piston-cylinder device contains 0.5 kg of water initially at 90℃ and with an initial quality of 20.9%.

A spring-loaded piston-cylinder device contains 0.5 kg of water initially at 90℃ and with an initial quality of 20.9%. At its initial state, the spring is relaxed and does not exert any force on the piston. The device is now heated until the pressure is 400 kPa and the new temperature is 250℃. What is the boundary work done by the water during this process? kJ What is the total amount of heat transfer into the system? kJ BONUS: If...

A spring loaded piston cylinder device contains 3 kg of carbon dioxide which can be assumed...

A spring loaded piston cylinder device contains 3 kg of carbon dioxide which can be assumed to be an ideal gas. The system is heated from 110 kPa, 23C to 1100kPa, 305C. What is the work done during this process? What is the heat transfer during this process?

A spring loaded piston cylinder contains 1.5 kg of air at 27°C and 160 kPa. It...

A spring loaded piston cylinder contains 1.5 kg of air at 27°C and 160 kPa. It is now heated in a process where pressure is linear in volume, P = A + BV, to twice the initial volume where it reaches 900 K. Find the work, the heat transfer and the total entropy generation assuming a source at 900 K. Is this a possible process?

A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device...

A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device starts and goes through a Carnot cycle and generates 500.3 kJ work. If the maximum temperature that water will reach is 1.5 times the minimum temperature of water and during heat rejection process, water goes from saturated vapor to saturated liquid phase Find: 1. QH & QL for this cycle (10 points). 2. TH & TL for this cycle (10 points). 3. Maximum and...

A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device...

A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device starts and goes through a Carnot cycle and generates 500.3 kJ work. If the maximum temperature that water will reach is 1.5 times the minimum temperature of water and during heat rejection process, water goes from saturated vapor to saturated liquid phase. Find: 1. QH & QL for this cycle . 2. TH & TL for this cycle. 3. Maximum and minimum pressures that...

A piston-cylinder device initially contains 75 g of saturated water vapor at 310 kPa . A...

A piston-cylinder device initially contains 75 g of saturated water vapor at 310 kPa . A resistance heater is operated within the cylinder with a current of 0.4 A from a 200 Vsource until the volume doubles. At the same time a heat loss of 2 kJ occurs. a.Determine the final temperature (T2). b. Determine the duration of the process. c. What-if scenario: What is the final temperature if the piston-cylinder device initially contains saturated liquid water?

Water contained in a piston-cylinder assembly as shown in the Figure below, initially at 1.5 ???...

Water contained in a piston-cylinder assembly as shown in the Figure below, initially at 1.5 ??? and a quality of 20%, is heated at a constant pressure until the piston hits the stops. Heating then continues until the water is saturated vapor. Show the processes of the water in series on a sketch of the ?-? diagram. For the overall process of the water, evaluate the work and heat transfer, each in ??⁄??. Kinetic and potential effects are negligible. (please...

A mass of 3 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder...

A mass of 3 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 175 kPa. Initially, 2 kg of the water is in the liquid phase and the rest is in the vapor phase. An electrical heater is in operation, and the piston rises until it hits a set of stops, which are set at double the initial volume. Electrical heating continues until the pressure reaches 500 kPa. Determine (a) the initial and final temperatures,...

A mass of 3 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder...

The cylinder in the figure(Figure 1) has a moveable piston attached to a spring. The cylinder's...

The cylinder in the figure(Figure 1) has a moveable piston attached to a spring. The cylinder's cross-section area is 10 cm2, it contains 0.0048 mol of gas, and the spring constant is 1500 N/m. At 21 ∘C the spring is neither compressed nor stretched. How far is the spring compressed if the gas temperature is raised to 200 ∘C? Express your answer to two significant figures and include the appropriate units.

Subjects