Match List-I with List-II:
| List-I | List-II |
|---|---|
| (A) Heat | (I) State function |
| (B) Internal energy | (II) Path function |
| (C) Work | |
| (D) Entropy |
Heat and work are examples of path functions because they depend on the path taken by the system.
Internal energy and entropy are state functions as their values depend only on the current state of the system, not on the process used to reach that state.
The internal energy of air in $ 4 \, \text{m} \times 4 \, \text{m} \times 3 \, \text{m} $ sized room at 1 atmospheric pressure will be $ \times 10^6 \, \text{J} $. (Consider air as a diatomic molecule)
An ideal gas has undergone through the cyclic process as shown in the figure. Work done by the gas in the entire cycle is _____ $ \times 10^{-1} $ J. (Take $ \pi = 3.14 $) 



