There is a PV diagram with ABC and the cycle is moving clockwise.
segment AB is isobaric
BC is isochronic
AC cannot be determined
The delta U for this is zero and the W=positive.
The last questions asks if the heat flow Q is positive, negative, or zero and the answer given is that it is positive.
I do not understand how to determine what Q is. Is it positive because the W is positive?
Thank you for the help!
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