Question

A system performs work $\Delta W$ when an amount of heat is$\Delta Q$ added to the system, the corresponding change in the internal energy is $\Delta U$. A unique function of the initial and final states (irrespective of the mode of change) is

• A. $\Delta Q$
• B. $\Delta W$
• C. $\Delta U$ and $\Delta Q$
• D. $\Delta U$

Answer 1

Answer: (D)

$\Delta U$

Answer 2

Change in internal energy (∆U) depends upon initial an find state of the function while ∆Q and ∆W are path dependent also.