Consider the figure provided.
\( 1 \) mol of an ideal gas is kept in a cylinder, fitted with a piston, at the position A, at \( 18^\circ \mathrm{C} \). If the piston is moved to position B, keeping the temperature unchanged, then ‘\( x \)’ L atm work is done in this reversible process. \( x = \) ______ L atm. (Nearest integer)
[Given: Absolute temperature \( = {}^\circ\mathrm{C} + 273.15 \), \( R = 0.08206 \) L atm \( \mathrm{mol^{-1} K^{-1}} \)]
