Questions
An ideal gas is taken through the process ABC shown in figure. Then
a
in process AB work done by the gas is positive
b
in process AB heat is rejected
c
in process AB internal energy decreases.
d
in process BC internal energy decreases.
detailed solution
Correct option is B
(2)AB is isothermal compression process. So ΔT=0, ΔU=0, work done by the gas is negative. Therefore from Q=ΔU+W it is clear that Q is negative i.e., heat is rejected. BC is isobaric compression process. As T decreases, internal energy also decreases.Talk to our academic expert!
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Which of the following laws of thermodynamics defines internal energy?
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