So the magnitude of this value is this value here. And in fact, this is very useful because now if we're given some vapor pressure and we're given the temperature and we know the constant, we can easily find our slope. That is, we can find the change in enthalpy of vaporization. Likewise, if we know this guy and this guy, we could find this guy. And if we know this guy and this guy, we can find the vapor pressure. So it's very useful.