The work done by the gas liberated when 50 g of iron $\text{ (molar mass }55.85{\mathrm{gmol}}^{-1}\text{ ) }$ reacts with hydrochloric acid in an open beaker at $25°\mathrm{C}$

• A

  Zero

• B

  $-2.2\mathrm{kJ}$

• C

  $2.2\mathrm{kJ}$

• D

  $0.22\mathrm{kJ}$