vibrational redistribution, 1592 vibrational relaxation, 1592 vibrational term, , 1593 vibrationally adiabatic transition- state theory, 1593 vibronic coupling, 1593 vibronic transition, 1593 vidicon, 1593 vinyl carbenes, 1594 vinylic cations, 1594 vinylic groups, 1594 vinylidenes, 1594 viologens, 1594 virial coefficients, 1595 virtual transition, 1595 viscosity, 1595 viscosity function, , 1595 viscous sintering, 1596 visibility in atmospheric chemistry , 1596 visible, 1596 volatilization, 1596 volatilizer, 1597 volt , 1597 voltage in electroanalysis , 1597 voltammetric constant, 1597 volume content, , 1598 volume flow rate, , 1598 volume fraction, , 1598 volume of activation, , 1598 volume of the stationary phase in chromatography , 1599 volume strain, , 1599 volume viscosity (or dilatational viscosity), 1599 volumetric flowrate in gas chromatography , 1600 volumic, 1600 vulcanization, 1600