Calculate the internal energy change of a system if the work done by the system is $8 \ J$ and the heat supplied to it is $40 \ J$. (in $J$)

In a process,$605 \ J$ of heat is absorbed by the system and $380 \ J$ of work is done by the system on the surroundings. What is the value of $\Delta U$?

Find the approximate value of $(\Delta H - \Delta U)$ in $J \cdot mol^{-1}$,for the formation of $CO$ from its elements at $298 \ K$. $(R = 8.314 \ J \cdot K^{-1} \ mol^{-1})$

During the free expansion of an ideal gas,its.......

Which one of the following is applicable for an adiabatic expansion of an ideal gas?

The work done in ergs for the reversible expansion of one mole of an ideal gas from a volume of $10 \ L$ to $20 \ L$ at $25 \, ^oC$ is