MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Carnot Cycle

A heat engine...

Question

A heat engine takes in $700 J$ of heat from high-temperaturere reservoir and rejects $500 J$ of heat to a lower temperature reservoir. How much work does the engine do in each cycle?

A

100 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

20 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

200 J

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

10 J

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $200 J$
Given, $Q_{h} = 700 J$ and $Q_{c} = 500 J$
The work done by a heat engine is given by $W = Q_{h} = Q_{c} = 700 - 500 = 200 J$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A heat engine takes in

900 J

of heat from a high-temperature reservoir and produces

300 J

of work in each cycle. What is its efficiency?

Q. A heat engine with 20.0% efficiency does 0.100 kJ of work during each cycle. How much heat is absorbed from the hot reservoir during each cycle?

Q. A Carnot engine absorbs

1000 J

of heat energy from a reservoir at

127^{o} C

600 J

of heat energy during each cycle. The efficiency of engine and temperature of sink will be

Q. A real heat engine has an efficiency of

40 %

. The work output of the engine is

100 kJ

per cycle. How much energy is extracted from the high temperature reservoir per cycle ?

Q. Two Carnot engines

A

B

are operated in series. Engine

A

receives heat from a reservoir at

600 K

and rejects heat to a reservoir heat to reservoir at temperature

T

B

receives heat rejected by engine

A

and in turn rejects it to a reservoir at

100 K

. If the efficiencies of the two engines

A

B

are represented by

η_{A}

η_{B}

respectively, then what is the value of

\frac{η_{B}}{η_{A}}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Second Law of Thermodynamics

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon