This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A certain Carnot heat pump transfers energy from the outside of a house, where the temperature is ... (Read 98 times)

soccerdreamer_17

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
A certain Carnot heat pump transfers energy from the outside of a house, where the temperature is -15C, to the inside of a room where the temperature is 21C.
 
  If this heat pump runs off of electricity, what is the minimum rate at which it uses electrical energy to deliver 150 W to the inside room?

Question 2

An air conditioner with a coefficient of performance of 3.5 uses 30 kW of power. How much power is it discharging to the outdoors?
 
  A) 30 kW
  B) 75 kW
  C) 105 kW
  D) 135 kW
  E) 210 kW


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momo1250

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 29, 2018
Answer to Question 1

18 W

Answer to Question 2

D


soccerdreamer_17

  • Member
  • Posts: 552
Reply 2 on: Jul 29, 2018
Wow, this really help

LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Measuring Temperature Using a Heat-Sensitive Wearable Thermometer Measuring Temperature Using a Heat-Sensitive Wearable Thermometer
A dim headlight indicates excessive resistance in fuel pump circuit. A dim headlight indicates excessive resistance in fuel pump circuit.
Reactions 6–10: The Energy Generation Phase Reactions 6–10: The Energy Generation Phase
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
The sodium-potassium pump The sodium-potassium pump
Video: TRH/TSH/Thyroid hormone

For a complete list of videos, visit our video library