Question: A biology laboratory is maintained at a constant temperature of 7.00C by an air conditioner, which is vented to the air outside. On a typical

A biology laboratory is maintained at a constant temperature of 7.00°C by an air conditioner, which is vented to the air outside. On a typical hot summer day the outside temperature is 27.0°C and the air conditioning unit emits energy to the outside at a rate of 10.0 kW. Model the unit as having a coefficient of performance equal to 40.0% of the coefficient of performance of an ideal Carnot device.
(a) At what rate does the air conditioner remove energy from the laboratory?
(b) Calculate the power required for the work input.
(c) Find the change in entropy produced by the air conditioner in 1.00 h.
(d) What If? The outside temperature increases to 32.0°C. Find the fractional change in the coefficient of performance of the air conditioner.

Step by Step Solution

★★★★★

3.56 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Like a refrigerator an air conditioner has as its purpose the removal of energy by ... 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)

P-T-S-L (63).docx

120 KBs Word File

Students Have Also Explored These Related Thermodynamics Questions!

A 0.25-inch-diameter cylinder is maintained at a constant temperature of 300oC and placed in a cross flow of CO2 at p = 100 kPa and T = 30oC. Calculate the heat loss for a 4.5-m length of the...

A vertical flat plate is maintained at a constant temperature of 120oF and exposed to atmospheric air at 70oF. At a distance of 14 in. from the leading edge of the plate the boundary layer thickness...

A 30-cm-diameter horizontal pipe is maintained at a constant temperature of 25oC and placed in room air at 20oC. Calculate the free-convection heat loss from the pipe per unit length.

1: Describe and explain the terms climate sensitivity, fat tail, and low beta, and how they relate to climate change. 2: What are the estimated economic costs of global warming? Can we trust these...

some that this person, who acts on behalf of the organi- , will act ethically because of the organizational con ; placed upon his or her individual behavior. rere is empirical evidence to support the...

TEMP1: 2.7 RH1:7.9 TEMP2:22.8 RH2:46.5 TEMP3:38.6 RH3:84.2 Our client has a laboratory facility that must be kept at 23C and 40% relative humidity due to the measurements being performed. A heating...

TEMP1: 2.7 RH1:7.9 TEMP2:22.8 RH2:46.5 TEMP3:38.6 RH3:84.2 please finish the form and answer question 1,2,3,4 Our client has a laboratory facility that must be kept at 23C and 40% relative humidity...

#6 and #7 1. Moist air at standard conditions is at a dry bulb temperature of 50F and a relative humidity of 70%. It is sensibly heated (constant moisture) to 72F. Use the psychrometric chart to...

2019 started out difcult for FreshDirect. Although FreshDirect's website read, \"We're on a mission to deliver quality beyond question and convenience that adds something great to your day,\"...

On further analysis of the DNA described in conceptual question C21, you discover that the triplex DNA in this alien organism is composed of a double helix, with the third helix wound within the...

Jon Summervold purchased a remote controlled toy watercraft from the Walmart store located in Aberdeen, South Dakota. The plaintiff sued Wal Mart, Inc. for alleged defective design and failure to...

what is columbia sportswear companys return on common equity as of december 3 1 , 2 0 2 4

A small surface of area A 1 = 3 cm 2 and a radiation sensor of area A 2 = 1 cm 2 are oriented as shown in the figure. Surface A 1 is opaque (diffuse emitter and reflector) and maintains a constant...

Which of the choices is an enantiomer of the compound shown? A)

question is attached The qualityiwntml manager at a compact uorescent light bulb (CFL) tadory needs to determine whether the mean life at a large shipment of CFLs is equal to 7,496 hours The...

A bundle of goods in Japan costs Yen 2,520,000 while the same goods and services cost $34,000 in the Unites States. If purchasing power parity holds, what is the current exchange rate of U.S. dollars...