Why the boiling point of water increases by adding impurity i.e. salt?
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)
1048745
When water is boiling under heat source, the heat is so intense that the water does not get a chance to condense in order to create fumes.  But, if the heat source is turned off, some water can condense due to loss or lack of heat creating appearance of steam fumes.
383320
the idea isn't that water can't heat up when it boils at low pressure, but that it doesn't have to. no matter what temperature something is, its molecules are moving somewhat, and some of them escape as a gas. also, any gas always is condensing into a liquid or solid. when pressure and tempurature are constant, these processes reach equilibrium where they cancel each other out. at high temperature, more gasses escape, and at low pressure, less gases return to liquid. so at somewhat low temperature and relativly lower pressure, even though few gases relatively escape, even fewer return to liquid, so the net effect is that the liquid evaporates at low temperature. if the temperature were raised, it would boil even faster.
668153
Add NaCl to Water to make a solution and then heat it.\nMeasure the increase in boiling point along with the molality.\nShow htat it is greater htan ht eoriginal water's boiling point.\nGiving the proof of the increase in boiling point and measure the Kb.
1162703
Higher. Boiling point is reached when the vapour pressure of the liquid is equal to the outside pressure. At sea -level boiling point of water is 100 C. So below sea level, since the air pressure is greater, boiling point is higher than 100 C
968042
Boiling is vapour pressure phenomenon. A liquid always exerts a pressure in the space just above it due to evaporation of its surface molecule which is called vapor pressure of that particular liquid and as temperature is raised the vapour pressure goes on increasing. When vapor pressure of the liquid exceeds atmospheric pressure liquid starts to boil.\nin case of a mixture, the solute molecules bind the molecules of the solvent and thus there are fewer surface molecule available to evaporate from the liquid surface. Due to which vapour pressure exerted by a mixture is always less than vapor pressure of pure solvent. To make vapor pressure of mixture to reach the atmospheric pressure level its temperature should be raised more than temperature of solvent alone. Thats why a mixutre has a boiling point elevation.
941271
KCl will have higher boiling point because its bond is polar.This can arise the posiibility of dipole-dipole interaction.Main factor which is determines boiling point is intermolecular forces.
429160
At a higher elevation the pressure on the water is less therefore it will boil at a lower temperature than it would at sea level.\n\nA liquids state of matter depends on pressure and temperature to make something from liquid to gas you use high temperature and low pressure.
993259
Boiling point of anything is dependent on pressure.... higher the pressure lower the boiling point...\nWhen you try to boil an egg on mountain.. coz the pressure there is quite low.. it take longer for water to boil and thus egg.
844455
Actually, the small amount of water initially added will immediately boil. This localized, violent reaction will cause the water (and nearby acid) to project upward, possibly into your face. ALWAYS add acid to water.
25625
It Increases the melting. Try It to find out
797871
raising the temperature. like with a saturated solution of salt-water, if you reise the temperature the water will take in more salt. it's the same with other thing too.
82527
This is not chemistry, but physics. I presume you are boiling water in a can, then sealing it and cooling it. There is then less pressure inside the can, since the water takes up less space than the water vapor. There is now more pressure outside the can than inside the can. You have unbalanced forces, and the can is unable to resist the pressure.\n\nThis can of course get far more complicated, and we can discuss the ductility of the can, and continuum mechanics of the can, and its chemistry, but I do not think you want anything that advanced. If you do, let me know.
713924
When you boiled the water, you evaporated some of it. This increases the salt concentration in the water which alters the ph. Since it went toward the alkaline side, it probably increased the calcium salts in the water.
228883
One of the things which effects the boiling points of substances is the intermolecular forces of attraction between the particles....the higher thr attractive forces, the higher the boiling point.\n\nWhich molecule has the higher attractive forces, Methane (Ch4) or Ammonia (NH3)?\n\nSince Methane is a small, nonpolar, hydrocarbon, the only attractive force its molecules experience is london forces (AKA induced dipoles).\nAmmonia on the other hand not only experiences london forces, but also experiences one of the most attractive forces...Hydrogen bonding.  The Hydrogens on the ammonia molecule are held in a polar bond with the Nitrogen making them form a partial positive charge and the Nitrogen forms a partial negative charge.  When the partial + Hydrogens from other NH3 molecules get near the parial - Nitrogens, they are attrcted to eachother which raises the boiling point of the substance.\nFor this reason, Ammonia gas will have a higher boiling point than methane.  This is confirmed by looking at the actual boiling points for each gas.\n\nBOILING POINTS:\nAmmonia: -33.5 degrees C\nMethane: -161.6 degrees C
345993
Although adding salt to water will raise the boiling point, you will need to add a lot of salt.  If this is water that will be used for cooking anything, it will ruin it.  For example, to raise the boiling temperature 1/2 degree celsius, requires 1/4 Cup of Salt!\n\nWhen a pot is boiling over, just turn down the heat or remove it from heat.  You could add some salt, which will change the vapor pressure and slow down the boiling process, but it takes a lot.
106372
u know that ice is H20 right? but that's not enough. it would easily melt if that's pure ice. so there is a Salt there. NaCl. why? because water or an ice slowly melts when thre is a substance. and vice versa when the water boils with salt.