Which of the following statements is/are false?

Options

A. Work is state function
B. Temperature is a state function
C. Change in the state is completely defined when the initial and final states are specified.
D. Work appears at the boundary of the system

Explanation

To determine which statements are false, we will analyze each option one by one:

1. **Work is a state function.**
- **Analysis:** Work is not a state function; it is a path function. This means that the value of work depends on the specific process or path taken from the initial state to the final state, rather than just the initial and final states themselves. Therefore, this statement is **false**.

2. **Temperature is a state function.**
- **Analysis:** Temperature is indeed a state function. It is a thermodynamic quantity that depends only on the state of the system and not on how that state was reached. Therefore, this statement is **true**.

3. **Change in the state is completely defined when the initial and final states are specified.**
- **Analysis:** This statement is also true. The change in a state function is determined solely by the initial and final states, regardless of the path taken. Thus, this statement is **true**.

4. **Work appears at the boundary of the system.**
- **Analysis:** This statement is correct as well. Work is done by or on the system at its boundary, such as when a piston compresses gas in a cylinder. Therefore, this statement is **true**.

**Conclusion:** The only false statement among the options is the first one: "Work is a state function."