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an ambient pressure lower than that encountered at sea level. human beings die in the vacuum of space because the pressure is so low that their blood litterally boils and yet their body temp is much less than that of boiling water.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoYou would have to be somewhere VERY up high. the change in altitude would decrease the boiling point.
Wiki User
∙ 11y agoThis assumes standard atmospheric pressure (1.00atm) and pure water. Water with ions boils at higher temperatures.
Wiki User
∙ 7y agoLiquid water is tranformed in a gas - water vapours.
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Does butane freeze?
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
The specific heat of a certain type of cooking oil is 1.75 cal(g and middot and degC). How much heat energy is needed to raise the temperature of 2.40 kg of this oil from 23 and degC to 191 and degC?
The energy is 103,6 kcal.
At normal atmospheric pressure and a temperature of 0 and degC which phase(s) of H2O can exist?
Ice (solid water) - the freezing point of water is o 0C; but because of the sublimation also gaseous molecules exist.
What is the freezing point of an aqueous 2.65 m calcium chloride solution?
dT = (i)(Kf)(m) is the equation that can be used to model the freezing point depression. dT represents the change change in temperature. i represents the amount of ions formed from the dissolution of the solute. Kf represents the constant of the freezing point depression of water. m is the molality of the solute in solution. dT = (3)(1.86 degC/m)(2.65m) dT = 14.8 degC 0-14.8 degC = -14.8 degC So the freezing point is -14.8 degrees C. The reason why this value was subtracted from zero is because the presence of a solute lowers the freezing point.
How much would the boiling point of water increase if 4 mol of sugar were added to 1 kg of water if Kb for water is 0.51 degC kg per mol for water and i is 1 for sugar?
ΔTb = Kb · bBSince i is 1 this does not need to be modified.ΔTb =0.51 x 4 = 2.04 deg C.
What water does at 100 and degc?
It boils
What would happen to a sample of water at 30 and degC if it is heated until the temperature reaches 120 and degC?
Water is transformed in vapors.
Does butane freeze?
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
What is the average temperature of a nuclear reactor?
A PWR has an inlet water temperature of 275 degC and outlet 325 degC
What would happen to the solubility of potassium chloride in water as the water temperature increased from 25 and degC to 100 and degC?
The solubility increase from 38,7 g KCl/100g water to 40,7 g KCl/100 g water.
What phase is water in at 1 ATM pressure and 150 and degC?
It is in the gas phase.
A solid substance with a mass of 200 grams is at its melting point temperature in a calorimeter While the substance changes from a solid to a liquid at the same temperature the 400-gram mass of water?
(4.184 J/g*degC)(400g)(40.0*degC-80.0*degC)+(200g)
Difference between dew point and boiling point?
Boiling point is the temperature(at a particular pressure) of a pure substance at which it boils . e.g water at 1 atm will boil at 100 degreeC. If u start heating water its temperature will rise from ambient to 100 degC only until it totally boils to steam. For a mixture of two components there will not be a single b.p. During boiling its temp will rise so the mixture will have an initial b.p and a final b.p. For a pure component you only have boiling point, if u cool steam from say 120 degC, water will condense out at 100 degC. If you cool air which contains water which we call water vap or moisture, the water will condense at a particular temp which we call as dew point. This temp will depend on the amount of water vap in the air.
Is ice cooler then water?
Yes, assuming we are talking about pure water and pure ice. Ice is the solid state of water and occurs at 32 degF or 0 degC.
How is heat generated?
When water is heated, there is a relation between temperature and pressure at which the water and steam are in equilibrium. This applies up to 374 degC at which the corresponding pressure is 222 bar abs or 3220 psi abs. Beyond this temperature liquid water cannot exist and the steam is said to be supercritical. At any temperature between 100 degC and 374 degC there will therefore be a pressure at which steam is just formed and this is said to be dry saturated steam. It is saturated because if the temperature drops even slightly at the same pressure, steam will condense. If at this same pressure the steam is further heated, it is said to be superheated because it is at a temperature higher than dry saturated steam would be. Superheated steam is desirable for use in steam turbines, because it prevents formation of water droplets as the steam is expanded through the turbine-the droplets could damage the turbine blades. In the supercritical region above 374 degC steam will always exist whatever the pressure, so the concept of superheat does not apply here.
Does a lid make water boil faster?
Yes, but not very much. The purpose of the lid is to insulate the water or whatever else is inside the pot. As it does this, though the lid also increases the air pressure pressure slightly. Water boils at higher temperatures under higher pressures. So there is in effect a competition between the insulation effect and the pressure effect. I did an experiment on my kitchen stove and found that water boils very slightly faster with the lid on. This experiment has led me to conclude that from a time saving perspective, it makes very little difference whether you put the lid on or not. From an environmental perspective, however, it is much worse for global warming and resource depletion if billions of people are boiling water without the lid. So: PUT THE LID ON!
Does the temperature of water alter the freezing time?
Yes. It takes more time for hot water to freeze - the cooling process takes longer when you start from a higher temperature. Different liquids freeze at different temperatures. It depends how cold the place where you're putting the boiling water is, how much boiling water there is, etc. I think that each liquid has a specific temperature at which it freezes - it may not be associated with thickness.
