Question

Steam is contained in a closed rigid container with a volume of 2 m3 . Initially,...

Steam is contained in a closed rigid container with a volume of 2 m3 . Initially, the pressure and the temperature of the steam are 7 bar and 400°C, respectively. The temperature drops as a result of heat transfer to the surroundings. i. Determine the temperature at which the condensation first occurs in °C. [6 marks] ii. Evaluate the fraction of the total mass that has condensed when the pressure reaches 0.75 bar. [4 marks] iii. Calculate the volume in m3 , occupied by saturated liquid at the final state. [4 marks] iv. Show the process on the P - v (pressure – specific volume) diagram with respect to saturation lines

Engineering   Chemical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Steam is contained in a closed rigid container with a volume of 2 m3 . Initially,...
Steam is contained in a closed rigid container with a volume of 2 m3 . Initially, the pressure and the temperature of the steam are 7 bar and 400°C, respectively. The temperature drops as a result of heat transfer to the surroundings. i. Determine the temperature at which the condensation first occurs in °C. [6 marks] ii. Evaluate the fraction of the total mass that has condensed when the pressure reaches 0.75 bar. [4 marks] iii. Calculate the volume in...
A rigid container with a volume of 2 m3 initially contains 0.05 m3 of liquid and...
A rigid container with a volume of 2 m3 initially contains 0.05 m3 of liquid and 1.95 m3 of vapor at 125 kPa. Heat is transferred from a 3000C source to the contents of the vessel until the pressure in the container reaches 4 MPa. The contents of the vessel are now cooled in a surrounding temperature of 250C until the contents reach its initial state. Determine total entropy generated (Sgen) during the cycle.
A rigid container of volume 1 m3 contains saturated water at 1Mpa. If the quality is...
A rigid container of volume 1 m3 contains saturated water at 1Mpa. If the quality is 0.10, what is the volume occupied by the vapor?
Water, initially saturated vapor at 14.6 bar, fills a closed, rigid container. The water is heated...
Water, initially saturated vapor at 14.6 bar, fills a closed, rigid container. The water is heated until its temperature is 200°C. For the water, determine the heat transfer, in kJ/kg. Kinetic and potential energy effects can be ignored.
Three kilograms (3.0 kg) of saturated steam at 162oC is held in a closed piston-cylinder apparatus...
Three kilograms (3.0 kg) of saturated steam at 162oC is held in a closed piston-cylinder apparatus with a weighted piston that exerts a constant force on the steam. The piston-cylinder apparatus loses energy to the surroundings such that at a certain point 50% of the steam has condensed to a saturated liquid inside the cylinder (NOTE: the vapor and liquid are still saturated at the new condition). a. For the process described above, determine the heat exchange with the surroundings....
Air is contained in a rigid, well-insulated container of volume 3 m3. The air undergoes a...
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,...
Consider 1 kilogram of saturated water at 70 degrees celsius in a closed and rigid container...
Consider 1 kilogram of saturated water at 70 degrees celsius in a closed and rigid container which is heated to steam (superheated water) at 300 degrees celsius and 5 MPa by adding 1500 kJ of heat. a) What is the fraction of vapour and liquid at the initial state? b) What is the work done as a result of the heating process?
An initially empty, well insulated, rigid tank with a volume of 2 m3 is fitted with...
An initially empty, well insulated, rigid tank with a volume of 2 m3 is fitted with a mixing device. The tank has two inlets and zero outlets. One inlet is water at 1 MPa and 600◦C while the other is saturated liquid water. Both enter the tank slowly. If the amount of work done by the mixing device is 300 kJ, what must the temperature of the saturated liquid water be if the same mass is added through both inlets...
Q3. A tank with rigid walls and a volume of 0.05 m3 initially has a two-phase...
Q3. A tank with rigid walls and a volume of 0.05 m3 initially has a two-phase liquid- vapor mixture of ammonia at a pressure of 4 bar and a quality of 10%. The tank is then heated such that the pressure is kept constant through a pressure-regulating valve that allows saturated vapor to escape. The heating continues until the quality of the mixture in the tank is 40%. Assume kinetic and potential energy changes are insignificant. Determine: (i) The final...
A rigid tank has a volume of 0.01 m3. It initially contains saturated water at a...
A rigid tank has a volume of 0.01 m3. It initially contains saturated water at a temperature of 200 oC and a quality of 0.4. The top of the tank contains a pressure regulating valve which maintains the vapor at constant pressure. This system undergoes a process where it is heated until all the liquid vaporizes. How much heat in (kJ) is required? You may assume there is no pressure drop in the exit line.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT