For an open unsteady state system, 15 J of heat was supplied and -5 J – McqOptions

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1.	For an open unsteady state system, 15 J of heat was supplied and -5 J of work was done on the system, what is the value of change in enthalpy?
A.	10 J
B.	– 15 J
C.	20 J
D.	– 25 J
Answer» B. – 15 J

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