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Question EXE.1A.HL.TZ0.23

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.23
Level HL Paper 1A Time zone TZ0
Command term Question number 23 Adapted from N/A
23.
[Maximum mark: 1]
EXE.1A.HL.TZ0.23

Three statements about the Carnot cycle are:

I.   The Carnot cycle is reversible.
II.  The net entropy change of the surroundings of the gas over one cycle is positive.
III. Heat transfer takes place in only two stages of the cycle  

Which statements are correct?


A.  I and II

B.  I and III

C.  II and III

D.  I, II and III

[1]

Markscheme

B

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