Question: A 1200-W electric resistance heating element whose diameter is 0.5 cm is immersed in 40 kg of water initially at 20C. Assuming the water container

A 1200-W electric resistance heating element whose diameter is 0.5 cm is immersed in 40 kg of water initially at 20°C. Assuming the water container is well-insulated, determine how long it will take for this heater to raise the water temperature to 50°C. Also, determine the entropy generated during this process, in kJ/K.

Step by Step Solution

★★★★★

3.43 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

An electric resistance heater is immersed in water The time it will take for the electric heater to ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

837-ME-T (5336).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A 30-cm-long, 1500-W electric resistance heating element whose diameter is 1.2 cm is immersed in 70 kg of water initially at 20°C. Assuming the water container is wellinsulated, determine how...

A closed tank, V 10L, containing 5 kg of water initially at 25C, is heated to 175C by a heat pump that is receiving heat from the surroundings at 25C. Assume...

A piston-cylinder device contains 0.60 kg of water initially at 300 kPa and the quality is 0.60. The water is first expanded at constant pressure to 300 o C and then compressed isothermally to...

A 1200-W electric resistance heating element whose diameter is 0.5 cm is immersed in 40 kg of water initially at 20C. Assuming the water container is well-insulated, determine how long it will take...

8-106 Writing the first- and second-law relations and simpli- fying, obtain the reversible work relation for a closed system that exchanges heat with the surrounding medium at 7, in the amount of Q,...

A 50-cm-long, 800-W electric resistance heating element whose diameter is 0.5 cm is immersed in 40 kg of water initially at 20°C. Assuming the water container is well insulated determine how long...

A 40-cm-long, 800-W electric resistance heating element with diameter 0.5 cm and surface temperature 120C is immersed in 75 kg of water initially at 20C. Determine how long it will take for this...

A 4 0 - cm - long, 8 0 0 - W electric resistance heating element with diameter 0 . 5 cm and surface temperature 1 2 0 C is immersed in 7 5 kg of water initially at 2 0 C . Determine how long it will...

1 6 7 9 A 4 0 - cm - long, 8 0 0 - W electric resistance heating element with diameter 0 . 5 cm and surface temperature 1 2 0 C is immersed in 7 5 kg of water initially at 2 0 C . Determine how long...

Assessment for Feedback and GradeEssay comparing Oedipus and Hamlet Which character showed greater resilience: Oedipus or Hamlet?

The bookkeeper of J. Stevenson's business prepares the following trial balance for the financial year ended 28 February 2005. TRIAL BALANCE R C 43 000 00 10 000 00 R Capital Mortgage on premises at...

(Section 2.2) The price of the four sorts of goods produced in an economy in 2000 are: Good A B C D Price 8 9 4 2 Quantity 1000 400 600 1000 The prices of the goods in 2001 are: Good A B C D Price 9...

Far from providing a useful insight, it is thought by many that the life cycle concept is misleading and not helpful to managers making strategic marketing decisions for future time horizons. Fully...

Find Vo in the circuit shown.

Among the decisions a designer must make is selection of the failure criteria that is applicable to the material and its static loading. A 1020 hot-rolled steel has the following properties: Sy = 42...

A 4142 steel Q&T at 80F exhibits Syt = 235 kpsi, Syc = 275 kpsi, and f = 0.06. Choose and plot the failure locus and, for the static stresses at the critical locations, which are 10 times those in...

Question 1 1 0 Points The CELLULOID CLOSET showed how movies have always showed positive portrayals of LGBT characters. True False Question 2 1 0 Points The CELLULOID CLOSET describes the Hays...

DVD Rentals The probabilities that a customer will rent 0, 1, 2, 3, or 4 DVDs on a single visit to the rental store are 0.25 , 0.25 , 0.1, 0.35, and 0.05 , respectively. Part: 0 / 2 Part 1 of 2...

Suppose a bond with no expiration date has a face value of $10,000 and annually pays a fixed amount of interest of $800. In the table provided below, calculate and enter either the interest rate that...