Response to the following problem:
The surface tension of water, in dynes per centimeter is given by the empirical equation (W. D. Harkins: The Physical Chemistry of Surface Films, Reinhold, New York, 1952),
γ = 75.796 - 0.145θ - 0.00024θ2,
Where θ is the Celsius temperature. Calculate the change of surface tension with respect to temperature
θ,dγ/ dθ, at 10°C and 60°C .