The molar heat for the evaporation of k-butanol at 25 degrees Celsius is 10.21kcal. The pressure of the saturated steam as a function of temperature is given by the following empirical formula: log(p) = 8.5856 -(1971.7/(θ + 230)), where p is in mmHg and θ in degrees Celsius.

Calculate a) the change in entropy, ΔS, and b) the change in Gibbs energy, ΔG, as 1mol of liquid butanol at 25 degrees Celsius is becoming gas with 0.001atm of pressure under the same temperature.

Butanol in gas state is considered an ideal gas.