When can water remain a liquid above 100°C?Pressure must be less than sea level.Pressure must be greater than 760 mm Hg.Water cannot be heated above 100°C.H 2O must be completely in the gas phase

If the temperature of the water were 0°C and the pressure was above 760 mm Hg, what phase would the water be in?

In order for a high temperature boiler or steam engine to produce superheated water, or steam:the heat source must be greater than 100°Cthe system must be sealed and become pressurized above atmospheric pressurethe water must be permitted to evaporate quicklythe vapor pressure must be kept below 760 mm(Hg)

According to the phase diagram for H2O, what happens to the phases of water at 0.5 atm pressure as the temperature is decreased from 110C to -10C?

Water has high heat of vaporization and this is attained in its:Question 7Select one:A.vapor or steam phaseB.Before the boiling pointC.Liquid phaseD.Solid phase

The boiling points of some elements are given below.These three gases are made into liquid air at –200°C and are separated by fractional distallation. When the temperature is increased by 50°C, which substance(s) would remain in liquid state ?A) NitrogenB) XenonC) OxygenD) Nitrogen and oxygen