An adiabatic process is .................

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

The formula for the Joule-Thomson coefficient is ............. .

Calculate work done if $1 \ mole$ of an ideal gas expands isothermally from $2 \ dm^3$ to $2.8 \ dm^3$ against constant external pressure $1 \ atm$. (in $J$)

Which of the following reactions performs zero work?

What is an exothermic reaction and an endothermic reaction?