Differentiate between the reversible and irreversible process in thermodynamics.

(1) - When a system changes from an equilibrium state A to another equilibrium state B, choose the correct statement for each of the quantities (i – iii): (i) Heat; (ii) Entropy; (iii) Work done by the system. Statements: " (a) "It's a quantity that is determined uniquely for states A and B.' (b) "It's a quantity that is determined by the change between states A and B, and also by specifying how the system changed from A to B."

Which of the following thermodynamic processes are impossible? Assume an ideal gas process.  Choose as many as apply.