The system that does not allow the heat to pass through its boundary between the system and surroundings is called as ______________ system.

The system that does not allow the heat to pass through its boundary

1.	The system that does not allow the heat to pass through its boundary between the system and surroundings is called as ______________ system.
A.	adiabatic
B.	open
C.	isothermal
D.	close
Answer» B. open