System and surrounding

1. Define system.
2. What is surrounding?
3. How is the system classified based on the nature of boundary?
4. What is adiabatic wall?
5. Define surrounding.
6. What is open system?
7. What is the difference between closed system and isolated system?
8. Coffee kept in an ideal vacuum flask is _______ system.
9. Neither heat nor mass is transferred in ______ system.
10. In open system heat alone is transferred between system and surrounding. State true or false.

Give your answers in the comment column.