Question

A system is changed from an initial state to a final state by a manner such that $\Delta H=q$. If the same change from the initial state to the final state were made by a different path, which of the following statements are correct.

• A. $\Delta H$ remain the same
• B. $\Delta H$ will depend upon the type of path
• C. Heat exchanged q will be same if the path is isobaric
• D. Heat exchanged q will be different if the path is not isobaric

Answer 1

Answer: (A), (C)

The correct options are
A $\Delta H$ remain the same
C Heat exchanged q will be same if the path is isobaric

$\Delta H=q_p$
since H is state function $\Delta H$ will remain same from both path-isobaric and non-isobaric
But $q=q_p$ only when path was isobaric.
$\Delta H=q_p$ only for isobaric path.