If W is the amount of work done by the system and q is the amount of heat supplied to the system, identify the type of the system

Express the change in internal energy of a system when (iii) w amount of work is done by the system and q amount of heat is supplied to the system what type of system would it be?

Express the change in internal energy of a system when iii) w amount of work is done by the system and q amount of heat is supplied to the system. What type of system would it be?

if work is done by the system then W is

if work is done by the system then W is

Express the change in internal energy of a system when (i) No heat is absorbed by the system from the surroundings, but work (w) is done on the system. What type of wall does the system have ? ii) No work is done on the system, but q amount of heat is taken out from the system and given to the surroundings. What type of wall does the system have? (iii) w amount of work is done by the system and q amount of heat is supplied to the system. What type of system would it be?