Appendix b lists the vapor pressure of water at various external pressures. plot the data in appendix b, vapor pressure (torr) versus temperature (°c). from your plot, estimate the vapor pressure of water at body temperature, 37°c. explain the significance of the data point at 760.0 torr, 100°c. a city at an altitude of 5000 ft above sea level has a barometric pressure of 633 torr. to what temperature would you have to heat water to boil it in this city? a city at an altitude of 500 ft below sea level would have a barometric pressure of 774 torr. to what temperature would you have to heat water to boil it in this city?