Thermodynamics Question 266

Question: There are two processes ABC and DBF. In which of the process is the amount of work done by the gas greater?

Options:

A) ABC

B) DEF

C) Equal in both processes

D) It cannot be predicted

Show Answer

Answer:

Correct Answer: B

Solution:

[b] WABC=πr22=π(6)22=18π

WDEF=π×322+π×324+(1512)×18

=6.75π+54

WDEF>WABC



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