Question

Which of the following statements is true in respect of usual quantities represented by $\Delta Q$, $\Delta U$ and $\Delta W$ ?

• A. $\Delta U$ and $\Delta W$ are path dependent.
• B. $\Delta U$ and $\Delta Q$ are path dependent.
• C. $\Delta U$ does not depend on path.
• D. $\Delta Q$ does not depend upon path.

Answer 1

The correct option is C $\Delta U$ does not depend on path.

Internal energy is a state-function, so it depends only upon the initial and final points not on the path followed.