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If a liquid sample of naphthalene is heated and remains at 218 and degC until it is completely vaporized you know that 218 and degC is the of naphthalene.?
Boiling point.
Does butane freeze?
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
How much heat in kJ is required to melt 54.0 g of ice at 0 and degC into water at 0 and degC if and DeltaHfus for water 6.01 kJmol?
The first step is to convert the mass of ice to moles using the molar mass of water (18.015 g/mol). Then, use the molar enthalpy of fusion to determine the heat required to melt the ice. Finally, multiply the molar enthalpy of fusion by the number of moles of water to get the total heat required in kJ.
If A liquid boils at 120 and degC until it all evaporates leaving an empty container. What is most likely true about the liquid?
The liquid is likely to have a boiling point higher than 120°C because it was able to boil at that temperature before evaporating completely. This suggests that the liquid has a high boiling point and is relatively stable at high temperatures.
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.
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.
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.
Does uranium boil or melt?
Melting point 1132 degC, boiling point 4131 degC
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.
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!
How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water (Kf 1.86 and degC(molkg) for water and i 1 for sugar)?
7.44°C~apex
What phase is water in at 1 ATM pressure and 150 and degC?
Water is in the liquid phase at 1 ATM pressure and 150 degrees Celsius. At this temperature and pressure, water exists as a liquid.
Difference between dew point and boiling point?
Oh, dude, the dew point is when water vapor in the air condenses into liquid water, like when your cold drink sweats on a hot day. Boiling point is when a liquid turns into a gas, like when you're waiting for your pasta water to start bubbling. So, basically, one is about getting a little wet, and the other is about things getting steamy.
The normal boiling point of chloroform which has a higher vapor pressure than water at 100 and degC is?
The boiling point of chloroform is 61,15 oC.
If a liquid sample of naphthalene is heated and remains at 218 and degC until it is completely vaporized you know that 218 and degC is the of naphthalene.?
Boiling point.
Does butane freeze?
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
