For an open unsteady state system, 15 J of heat was taken off and 10 J – McqOptions

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1.	For an open unsteady state system, 15 J of heat was taken off and 10 J of work was done by the system, what is the value of change in enthalpy?
A.	– 5 J
B.	5 J
C.	25 J
D.	– 25 J
Answer» B. 5 J

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