MyQuestionIcon

12

You visited us 12 times! Enjoying our articles? Unlock Full Access!

Carnot Cycle

An automobile...

Question

An automobile engine absorbs $1600 J$ of heat from a hot reservoir and expel $1000 J$ to a cold reservoir in each cycle.Find the efficiency of the cycle ?

A

37.5

%

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

B

47.5

%

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

C

40

%

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

D

30

%

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

Open in App

Solution

The correct option is A $37.5$ %
The efficiency , $η = 1 - \frac{Q_{c}}{Q_{h}} = 1 - \frac{1000}{1600} = 1 - 0.625 = 0.375$
The efficiency in % is $= 0.375 \times 100 = 37.5$ %

Suggest Corrections

thumbs-up

0

Similar questions

Q. An automobile engine absorbs

1600 J

of heat from a hot reservoir and expel

1000 J

to a cold reservoir in each cycle. What maximum work is done in each cycle?

Q. An automobile engine absorbs

1600 J

of heat from a hot reservoir and expel

1000 J

to a cold reservoir in each cycle. What is the power output of engine if it operates at

200

cycle per minute?

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 heat engine absorbs

360 J

of energy by heat and performs

25 J

of work in each cycle. The energy expelled to the cold reservoir in each cycle is:

Q. Consider an engine that absorbs 130 cal of heat from a hot reservoir and delivers 30 cal heat to a cold reservoir in each cycle. The engine also consumes 2

J

energy in each cycle to overcome friction. If the engine works at 90 cycles per minute, what will be the maximum power delivered to the load?

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