A domestic refrigerator is placed in an insulated closed room. If the unit operates with the door open which of the following statements are true for the case. There may be greater then one correct answer. Select one or more: O a. The temperature of the room will rise. O b. None of the statements are true for such a case. O c. The temperature of the room will fall. d. The internal energy of the room will increase.

A domestic refrigerator is placed in an insulated closed room. If the unit operates with the door open which of the following statements are true for the case. There may be greater then one correct answer. Select one or more: O a. The temperature of the room will rise. O b. None of the statements are true for such a case. O c. The temperature of the room will fall. d. The internal energy of the room will increase.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter42: Heat Gains And Heat Losses In Structures

Section: Chapter Questions

Problem 9RQ: If an air-conditioning system was being designed for usein Nogales, Arizona, what temperature...

See similar textbooks

Similar questions

Which of the following statement(s) is(are) correct? Group of answer choices A. N B. The pressure, volume, and temperature of the steam are not connected by simple equations unlike ideal gases. C. An irreversible adiabatic process is a constant entropy process. D. The vaporization process of steam is isobaric in nature. E. The general energy equations for ideal gas are analogous to the equations for the processes of vapors.
select if true or false for the following questions 1. For a standard condenser in a refrigeration system, the thermal energy (in J) is equal to the mass (in kg) multiplied by the change in enthalpy across the condenser (in J/kg). 2. Consider a basic refrigeration cycle: Since it requires less work to compress a liquid than a vapor, the entire refrigeration process would work better if the compressor was replaced with a pump. All else being equal, increasing the mass-flow rate of refrigerant will increase the rate of heat transfer at the system’s evaporator. All of these (except, of course, the one labeled, “None of these.”) None of these.
Thermodynamics (Jet-Propulsion Cycle) Round up the answer up to 5 decimal places. A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure & temperature is found to be 14.7psi & 546R. The axial flow compressor provides a pressure ratio of 14 to 1. Temperature at the turbine inlet is 2000R. The mass flowrate of air inside the engine is 133 lbm/s. Determine the following: a. T-S diagram b. Pressure & temperature at each state c. Thrust force (lbf)
If a heating system was being designed for use in Modesto, California, what temperature difference would be used for calculations? A. 30F B. 40F C. 50F D. 60F
Choose correct answer: PMM1 means, the machine does not follow the second law of thermodynamics Select one: True False
Basic thermodynamics. Determine the values fo a-e. thank you
Thermodynamics: Assume presure1, temperature1, x1, and alpha(i.e chose your own values).
The relationship as regards the transfer of heat between the system and the surrounding is INVERSELY proportional. Check the CAPITALIZED WORD(S) if it makes the statement correct. If it does, choose TRUE. If not, choose FALSE. TRUE or FALSE
Which of the following statement is incorrect? Select one: 1-In a Motor, mechanical energy is converted into electrical energy 2-In an electrical heater, electrical energy is converted into heat energy 3-In a Generator, the electrical energy is converted into mechanical energy 4-In a dynamo, mechanical energy is converted into electrical energy
Read the questions carefully before answering. Box or indicate your final answers when solving and draw your diagrams cleanly. Use the steam tables provided and DO NOT ROUND the values from the steam table. Write down the values taken from the steam table. An Isothermal process is done on air,and it has a pressure of 500 kPa and a volume of 0.5m3.The pressure then increases to 1.1 MPaFind the a.) final volume,b.)Q, c,) Wn, and d.) draw the P-V and T-S diagram
Which of the following is not the unit of pressure ? A.Kg/cm2 B.Newton C.Atmosphere D.Mm of wcl
The vaporizing and condensing temperature of a Refrigerant-12 system are 40 °F and 110 F, respectively. The suction vapor Assigned is superheated to 70 °F in the suction line, whereas the liquid is subcooled to 90 °F by giving off heat to the ambient air. Determine the following: a. Refrigerating effect per round B. The weight of refrigerant circulated per minute per ton.