The behavior of strain, magnetization, and resistivity of a nanoporous ${\text{Au}}_{0.55}{\text{Fe}}_{0.45}$ alloy was studied in situ during electrochemically induced charge variations on the surface of the alloy. The length of the sample varied reversibly over several cycles of charging and decharging and a maximum fractional length change of 0.14 percent was observed for an induced surface charge of $15\text{ }\text{micro-Coulombs}/{\text{cm}}^{2}$. The change in magnetization with induced surface charge was dependent on the applied magnetic field and a reversible variation in magnetization of 0.2 percent was observed at the highest applied magnetic field of 6 Tesla. The electrical conductivity could be reversibly changed by 2.5 percent due to the charge induced on the sample. In situ M\"ossbauer spectra recorded during charging and decharging also showed a systematic variation in quadrupole splitting. An attempt is made to explain the observed changes in physical properties quantitatively in terms of the additional charge that is accumulated on the surface of the nanoporous system.