Curriculum
Course: IB Physics HL
time left:
:
:
Login

Curriculum

IB Physics HL

Theme A — Space, Time and Motion

0/125 Dr Dabour Hub Science Diagram and Course Material

Theme B — The Particulate Nature of Matter

0/105 Dr Dabour Hub Science Diagram and Course Material

Theme C — Wave Behaviour

0/73 Dr Dabour Hub Science Diagram and Course Material

Theme D — Fields

0/77 Dr Dabour Hub Science Diagram and Course Material

Theme E — Nuclear and Quantum Physics

0/89 Dr Dabour Hub Science Diagram and Course Material

Tools and Inquiry — IB Physics skills

0/43 Dr Dabour Hub Science Diagram and Course Material
Quiz

B.4.8 The Carnot Cycle – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
The Carnot cycle consists of
two isobaric and two isovolumetric processes
two isothermal and two adiabatic processes
four isothermal processes
two isothermal and two isovolumetric processes
2.
The maximum efficiency of an engine operating between 600 K and 300 K is
25%
33%
100%
50%
3.
In which stage of the Carnot cycle is heat rejected to the cold reservoir?
Isothermal compression
Adiabatic expansion
Isothermal expansion
Adiabatic compression
4.
To increase the Carnot efficiency you should
use a lighter gas
lower Th and raise Tc
raise Th or lower Tc
use a bigger cylinder
5.
A reversible engine takes 900 J from a reservoir at 450 K. It rejects heat at 300 K. The heat rejected per cycle is
450 J
1350 J
300 J
600 J
6.
An engine between 300 K and 600 K is claimed to have 70% efficiency. This claim is
impossible because it exceeds 50%
possible
possible only in vacuum
impossible because it is less than 50%
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Part of Theme B — The Particulate Nature of Matter — see every lesson and quiz in this unit.
Accepted payment methods