Heat and Thermal ExpansionMedium
Question
A gas is expanded volume V0 to 2V0 under three different process. Process 1 is isobaric process, process 2 is isothermal and 3 is adiabatic. let ᐃU1, ᐃU2 and ᐃU3 be the change internal energy of the is three process. Then:-
Options
A.ᐃU1 > ᐃU2 > ᐃU3
B.ᐃU1 < ᐃU2 < ᐃU3
C.ᐃU2 < ᐃU1 < ᐃU3
D.ᐃU2 < ᐃU3 < ᐃU1
Solution
ᐃU1 = +ve
ᐃU2 = 0
ᐃU3 = - ve
∴ ᐃU1 > ᐃU2 > ᐃU3
As volume increase, ᐃW = +ve
ᐃU2 = 0
ᐃU3 = - ve
∴ ᐃU1 > ᐃU2 > ᐃU3
As volume increase, ᐃW = +ve
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