During the reversible isothermal expansion of an ideal gas,the change in internal energy 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 $J$)

Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures $T_1$ and $T_2$ $(T_1 < T_2)$. The correct graphical depiction of the dependence of work done $(|w|)$ on the final volume $(\ln V)$ is:

The enthalpies of the elements in their standard states are assumed to be

$A$ state function is .......

Name the energy which arises due to the motion of atoms or molecules in a body. How is this energy affected when the temperature is increased?