Harnet and Hamer [J. American Chemical Society 57 (1935): 33] report values for the potential of the cell Pt(s) PbSO₄(s) H₂SO₄(aq, a) PbSO₄(s) PbO₂(s) Pt(s) over a wide range of temperature and H₂SO₄ concentrations. In 1m H₂SO₄, their results were described by E(V) = 1.91737 + 56.1 × 10⁻⁶ t + 108 × 10⁻⁸ t²,where t is the temperature on the Celsius scale. Calculate ΔG_R, ΔH_R, and ΔS_R for the cell reaction at 11° and 35°C.