Why do the boiling points in the noble gases increase as you go down the group?
955354
hihihhhihih\nhahahahahah\nhahahah
1174427
As temperature goes up particle (atoms) move faster and as they move around they "bounce" off each other. Thus they expand and get bigger. Thus gas expand when heated. Solid become liquid and liquid become gas... The opposite is true. As temperature decrease, atoms slow down and bump less. Area is decrease as each atom need less space. Not a very scientific answer and may not get the best answer reward but that is the jist of it.
356469
The lower the air pressure, the lower the boiling point of water.
281476
Hi Krish_darwin, here is my answer to your problem ;)-\n\nFirst of all, we have to define what we mean by the thermal stability of a hydroxide, the thermal stability refers to that property of a hydroxide due to which, it resists its breakdown into its oxide and hydrogen i.e.\n\nMOH + Heat --------> M2O + H2\n\nAs we know that, in the 1st gp, as we move up, oxides are more stable because, the polarising power of the cation increases up the group.\n\nSo, that means that, as we move up, hydroxides become less stable and oxides become more stable. (see reaction)\n\nTherefore, we can say that thermal stability increases down the group.\n\nNow, coming to stability, as we know, lattice enthalpy decreases down the group, obviously, the stabilty of the hydroxide decreases down the group. Thus, this reaction can take place more easily down the group-\nMOH --------> M+     +     OH-
338742
Boiling point elevation, which means salinity increases the boiling point, and thus lowers the evaporation rates.
775873
So to say in simpler terms, every element has different properties and atomic reactivities which makes everyone change according to its own molecular activities in a given pressure. Each element got different boiling point as well as freezing point so you cannot assume that one certain element could behave the way others elements do. Negative temperatures surely means below the freezing point as far as water is concerned but Fluorine is far different from water, thus thinking that a negative temperature means freezing is totally not applicable to all the elements.♥
796417
Noble gases are inactive\nhalogens are very active\nLast one, ionization energy decreases\nlanthanide and actinide are the bottom 2 periods
58327
Pressure goes up as temperature goes up.
404626
Because it affects the interaction forces between the molecules. Depending in the impurity the boiling (or freezing) point may be higher (if the impurity boosts the forces) or lower (if it lowers them)
269322
1. All the members of the noble gases have a full shell of valence electrons, so they don't easily bond with other atoms.\n\n2. Because of the full shell, the noble gases have very weak intermolecular forces (IMF's), so they all have very low melting and boiling points. Helium actually doesn't become a liquid at normal atmospheric pressure until you get down to 4.22 K (-452 degrees Fahrenheit).\n\n3. They don't. Well, not usually. The larger noble gases (Krypton and Xenon) will bond with others, but only when using an expanded octet, in the d orbital. This makes compounds such as xenon tetrafluoride, XeF4. However, Helium and Neon will not react with anything, as their ionization energy is extremely high and their electron affinity is very low.\n\nNOTE: The answers above me are WRONG. Noble gases definitely do not form diatomic compounds. They are confusing the noble gases with the halogens, the elements that are in the second to the right column on the periodic table. It took all the way until 1962 for a chemist to synthesize a true noble gas compound, Xe[PtF6]- (xenon hexafluoroplatinate).\n\nEDIT: Tarangoyal, I'm reporting you for plagiarism. That answer is virtually identical to the first answer. There's no way that's a coincidence. You even made the same mistakes.
109177
i believe its because the boiling point of water is only 212 at normal atmospheric pressure, so if the pressure is changed the boiling point does too.
786932
Boiling point is the temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure.  Raising the temperature of a liquid increases the vapor pressure.  The higher the vapor pressure of a liquid already is, the lower the temperature required for it to boil.  Oxygen has a lower boiling point than hydrogen because it has a higher vapor pressure.  The reason for this is because there are less intermolecular forces holding oxygen together than there are intermolecular forces holding together hydrogen chloride.  In oxygen, there are weak London forces and nonpolar-covalent bonds.  In hydrogen chloride, there are London forces AND a polar-covalent bond.
966324
Ether has a higher saturated vapor pressure than water. Thus the former boils at a lower temperature than the latter.
232411
Salt only helps the boiling point rise a little. It will boil more rapidly. It will not decrease time it takes to reach boiling point.
718884
&#92;\n..&#92;\n..-----&#92;\n........&#92;\n.........&#92;\n(ignore the periods)\nx axis: time\nY axis: temperature\nThe step is there because the nature of cooling objects. As the naphthalene is cooled, its temp first decreases normally. However, when it begins to solidify, the heat being removed is used up as naphthalene molecules are subjected to intermolecular forces and begin to become a solid. Therefore, the horzontal part is where the substance becomes a solid. Finally, when the naphthalene is fully a solid, the temperature decreases again. An easy way to picture this concept is with boiling water. As some water molecules change to the gaseous state, the temperature of the water does not rise above its boiling point. This is equivilent to the horzontal part of the naphthalene cooling curve. As the substance changes states, energy is being generated/used up, and the temperature does not change for a time. When the conversiion is fully made, the temperature continus on its original course.
107278
the pressure rises.  this is because the molecules move faster.  if you want a formula use PV=nRT.  solve for P to get  P = (nRT)/V .\n\nsince the can is sealed, Volume stays the same.  R is a constant value anyway, n is the number of moles, which stays the same.  if you increase T, then P has to increase as well
99698
It depends on the specific heats of the compounds in the liquid.  Specific heat is a measure of how much energy it takes to raise the temperature of one gram of the compound by one degree (and consequently the amount of energy it will need to get rid of to cool back down), and is a property of the compound (i.e. it doesn't change unless you alter the chemical composition of the compound).  Basically, if you have something with a high specific heat, it has to get rid of a lot more heat (a measure of energy, not temperature) to reach the same temperature as something with a lower specific heat.  When the liquids cool, they have to give the extra heat to the air, and can only do so if the air they are touching is cooler than they are.  So it takes time for a liquid to transfer some if its heat to the air.  If there's more to transfer, it takes longer (just like downloading a bigger file).\n\n__________\nFreezing and boiling points and intermolecular forces are only relevent to phase changes.  The question is about a liquid that is staying a liquid and just changing temperature.  The above answers are all wrong.