Log in
Physics
2
answers
0
watching
16
views
28 Nov 2019

The electric motor of a heat pump transfers energy as heat from the outdoors, which is at -7.0°C, to a room that is at 19°C. If the heat pump were a Carnot heat pump (a Carnot engine working in reverse), how much energy would be transferred as heat to the room for each joule of electric energy consumed?

Watch
2
answers
0
watching
16
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Get unlimited access
Already have an account? Log in
Share
Irving Heathcote
Irving HeathcoteLv2
9 Sep 2019
Get unlimited access
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

An ideal refrigerator or ideal heat pump is equivalent to a Carnot engine running in reverse. That is, energy |Qc| is taken in from a cold reservoir, and energy |Qh| is rejected to a hot reservoir. (a) Show that the work that must be supplied to run the refrigerator or heat pump is

 

 

(b) Show that the coefficient of performance (COP) of the ideal refrigerator is

A Carnot air conditioner takes energy from the thermal energy ofaroom at 76°F and transfers it asheat to the outdoors, which is at96°F. For each joule of electric energyrequired to operate the airconditioner, how many joules areremoved from the room?
1 J

Please explain and show work so i can learn

an ideal air conditioner takers heat from room at 70 F andtransfers it to the out doors which at 96F . FOR EACH JOULE OFELECTRICAL ENERGY REQUIRED TO OPERATE the air conditioner, how manyBTU of heat are removed from the room ?

an ideal refrigerator working btween th and tc has a coefficient ofperformance given by k

J= 9.478* 10^-4 , BTU= 1.055* 10^3 J


TC (in K) = ??
TH (in K) =??

BTU/J = ???

------------------------------------

2) an ideal heat pump is used to heat a building. the outside t is-5 c and the inside is 22 c . the coefficient of performance asarefrigerator is k= 3.2 , and the heat pump deliver Qh= 7.54 mJ OFHEAT TO THE BUILDING each hour.at what rate (waats) must work bedone to run the heat pump?

Qh= 7.54 * 10^6 J , K= 3.2 , k=Qc/w =Qh-w/ w , w=1.795 * 10^6J


PAWER= ???

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in