Question

A closed, rigid steel tank contains 1 lbm of water, initially at 260F and a quality...

A closed, rigid steel tank contains 1 lbm of water, initially at 260F and a quality of 60%. The tank is fitted with a paddle wheel and the water is stirred until the temperature is 350F. The tank is well insulated on the outside and the steel is in thermal equilibrium with the water. The mass of the steel tank itself (not including water) is 60 lbm and the specific heat of the tank is 0.115 Btu/lbm·R. Changes in kinetic and potential energy are negligible.

1)Determine the pressure of the water at the final state, in lbf/in^2

2) Determine the work done, in Btu

3) Determine the amount of entropy produced for a system including both the water and the steel tank, in Btu/degrees R.

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
A closed, rigid steel tank contains 1 lbm of water, initially at 260 F and a...
A closed, rigid steel tank contains 1 lbm of water, initially at 260 F and a quality of 60%. The tank is fitted with a paddle wheel and the water is stirred until the temperature is 350 F. The tank is well insulated on the outside and the steel is in thermal equilibrium with the water. The mass of the steel tank itself (not including water) is 60 lbm and the specific heat of the tank is 0.115 Btu/lbm·R. Changes...
A closed, rigid tank is filled with water. Initially, the tank holds 1.0 lb of saturated...
A closed, rigid tank is filled with water. Initially, the tank holds 1.0 lb of saturated vapor and 7.0 lb of saturated liquid, each at 212°F. The water is heated until the tank contains only saturated vapor. Kinetic and potential energy effects can be ignored. Determine the volume of the tank, in ft3, the temperature at the final state, in °F, and the heat transfer, in Btu.
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.
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.
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.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT