Which of the following are not state functions?
$I$. $q + w$
$II$. $q$
$III$. $w$
$IV$. $H - TS$

Which of the following is not an extensive property?

$A$ gas absorbs a certain amount of heat and expands by $200 \ cm^3$ against a constant external pressure of $2 \times 10^5 \ Nm^{-2}$. What is the work done by the system (in $J$)?

$A$ gas is allowed to expand against a constant external pressure of $2.5 \ bar$ from an initial volume of $2.5 \ L$ to a final volume of $4.5 \ L$. What is the amount of work done (in $J$)?

Which of the following is an example of an intensive property of the system?

Which of the following reactions shows work of compression?