Question

A system is changed from an initial state to a final state by a manner such that $\Delta H=q.$ If the change from the initial state to the final state were made by a different manner then $\Delta H$ remains same but $q$ changes because

• A. $\Delta H$ is a path function and $q$ is a state function
• B. $\Delta H$ is a state function and $q$ is a path function
• C. Both $\Delta H$ and $q$ are state function
• D. Both $\Delta H$ and $q$ are path function

Answer 1

Answer: (B)

Enthalpy change, ie,$\Delta H$ is a state function, ie, depends only upon the initial and final states, not upon the path followed. While heat, $q$ is a path function, ie, depends upon the path followed.