25 J of heat is supplied to a system and work done by the system is 15 – McqOptions

MCQOPTIONS

1.	25 J of heat is supplied to a system and work done by the system is 15 J. What is the change in internal energy of the system?
A.	10 J
B.	20 J
C.	25 J
D.	35 J
Answer» B. 20 J

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