Pick out the correct statement.

Solution(By Examveda Team)

Let's analyze each option to determine the correct statement:

Option A: Entropy and enthalpy are path functions.

This statement is incorrect. Entropy and enthalpy are both state functions, not path functions. State functions depend only on the current state of the system and are independent of the path taken to reach that state.

Option B: In a closed system, the energy can be exchanged with the surrounding, while matter cannot be exchanged.

This statement is correct. In a closed system, energy can be exchanged with the surroundings (through heat or work), but matter cannot enter or leave the system.

Option C: All the natural processes are reversible in nature.

This statement is incorrect. In reality, most natural processes are irreversible. Reversible processes are idealized and often used in thermodynamics for analysis, but they are not the norm in the real world.

Option D: Work is a state function.

This statement is incorrect. Work is not a state function; it is a path function. The amount of work done depends on the specific path taken during a process.

Therefore, the correct statement among the options is Option B: In a closed system, the energy can be exchanged with the surrounding, while matter cannot be exchanged.