Make a rough estimate of the viscosity of 2-butanol and aniline at their boiling points, using the modified Arrhenius equation. Compare your values with those given using the equation for viscosity in Appendix C.

Data from appendix c

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LOG[viscosity] = [VISA] * [(1/T) - (1/VISB)], viscosity mNs/m, T deg K DELHF = Standard enthalpy of formation of vapour at 298 K, kJ/mol DELGF = Standard Gibbs energy of formation of vapour at 298 K, kJ/mol CPVAPA, CPVAPB, CPVAPC, CPVAPD = Constants in the ideal gas heat capacity equation: Cp = CPVAPA+ (CPVAPB) *T+ (CPVAPC) *T**2 + (CPVAPD) *T **3 Cp J/mol K, T K ANTA, ANTB, ANTC = Constants in the Antoine equation: Ln (vapour pressure) = ANTA-ANTB/(T + ANTC), vapour pressure in mmHg, T in K To convert mmHg to N/m multiply by 133.32 To convert degrees Celsius to Kelvin add 273.15 TMN = Minimum temperature for Antoine constant, C TMX = Maximum temperature for Antoine constant, C