What is the nature of change in internal energy in the following three thermodynamical processes shown in figure? - VgyanHub

Question:

What is the nature of change in internal energy in the following three thermodynamical processes shown in figure?

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Options :

(a) △U is positive in all the three cases
(b) △U is negative in all the three cases
(c) △U is positive for (i), negative for(ii), zero for (iii))
(d) △U=0, in all the cases

Answer :

(d) △U=0, in all the cases

Answer Steps :

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