Question

Initially (state 1) a well-insulated rigid tank contains 20 kg of a saturated liquid-vapor mixture of...

Initially (state 1) a well-insulated rigid tank contains 20 kg of a saturated liquid-vapor mixture of water at 100 kPa and half of the mass is in the liquid phase. An electric resistance heater placed in the tank is now turned on and kept on until all the liquid in the tank is vaporized (state 2). Determine (a) the initial specific volume in m3/kg, (b) the final specific entropy in kJ/kg.K and (c) change of entropy in kJ/K.

Engineering   Mechanical-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
Initially (state 1) a well-insulated rigid tank contains 20 kg of a saturated liquid-vapor mixture of...
Initially (state 1) a well-insulated rigid tank contains 20 kg of a saturated liquid-vapor mixture of water at 100 kPa and half of the mass is in the liquid phase. An electric resistance heater placed in the tank is now turned on and kept on until all the liquid in the tank is vaporized (state 2). Determine (a) the initial specific volume in m3/kg, (b) the final specific entropy in kJ/kg.K and (c) change of entropy in kJ/K.
A well-insulated rigid tank contains 6 kg of saturated liquid vapor mixture of water at 150...
A well-insulated rigid tank contains 6 kg of saturated liquid vapor mixture of water at 150 kPa. Initially, half of the mass is in liquid phase. An electric resistance heater placed in the tank is then turned on and kept on until all the liquid is vaporized. Determine the electrical work (Wel) in MJ
A well-insulated rigid tank contains 5-kg of a saturated liquid-vapor mixture of water at 100 kPa....
A well-insulated rigid tank contains 5-kg of a saturated liquid-vapor mixture of water at 100 kPa. Initially, three-quarters of the mass is in the liquid phase. An electric heater with a power rating of 880 W is placed in the tank. Determine how long it will take to vaporize all the liquid in the tank. Show the process on a T-v diagram with respect to saturation lines.
A 0.1-m3 rigid tank contains saturated liquid-vapor mixture of water, initially at 150 kPa and 52...
A 0.1-m3 rigid tank contains saturated liquid-vapor mixture of water, initially at 150 kPa and 52 percent quality. Heat is now transferred to the tank until the system becomes superheated vapor and the pressure reaches 300 kPa. Determine (a) the total mass of the mixture in the tank and (b) the amount of heat transferred.
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...
3. A two-phase liquid-vapor mixture of water, initially at 1.0 MPa with a quality of 71.1436%,...
3. A two-phase liquid-vapor mixture of water, initially at 1.0 MPa with a quality of 71.1436%, is contained in a rigid, well-insulated tank. The mass of H2O is 2 kg. An electric resistance heater in the tank transfers energy (heat) to the water at a constant rate of 80 W. Determine (a) the time, in hour, when the temperature in the tank reaches 350oC, and (b) the final pressure, in MPa.
system, a rigid tank, contains mixture of saturated water vapor and saturated liquid at 90 oC....
system, a rigid tank, contains mixture of saturated water vapor and saturated liquid at 90 oC. Total mass is 1.5 kg. quality is 0,34. system is heated untill all liquid is converted into vapor. how much heat is transferred to the syste, show this process in P-v-diagram
Water of mass 2 kg in a closed, rigid tank is initially in the form of...
Water of mass 2 kg in a closed, rigid tank is initially in the form of a twophase liquid-vapor mixture. The initial temperature is 50° C. The mixture is heated until the tank contains only saturated vapor at 110° C. (i) Find the initial pressure, in kPa. (ii) Find the work for the process, in kJ. (iii) Find the heat transfer for the process, in kJ.
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 50 kg copper block initially at 350 oC is quenched in a closed, rigid insulated...
A 50 kg copper block initially at 350 oC is quenched in a closed, rigid insulated tank containing 120 L of liquid water at 25 oC. Specific heat of copper, Cc = 385 J/(kgK), specific heat of liquid water, Cw = 4180J/(kgK). (i) Calculate the entropy change (kJ/K) of copper block. (ii) Determine the entropy change (kJ/K) of liquid water.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT