What freeze faster sugar water or salt water or water?

Answer 1

sugar is a covalent compound where as salt is an ionic compound,so salt while dissolving in the water splits.

This is mainly dependent of the 'total dissolved partical' concentration (mol/L):

• Sugar (C6H12O6): 1 mole particles per 180 g (for 1 mole sugar)
• Salt (NaCl) 2 mole particles per 58.5 g (for 1 mole salt) = 6 mole particles per about 180
• In water the freezing point will be lowered by 1.86oC per mole particles dissolved:

  So 180 g/L sugar: freeze at -1.86oC

  and 175.5 g/L salt freeze at -(6*1.86) = -11.2oC

  or 29.2 g/L salt will freeze at the same as 180 g suger: -1.86oC

Answer 2

Assuming you had equal amounts of each, the pure water would freeze first...Adding sugar or salt to water lowers its freezing point, meaning that more energy would be required to be removed from salt water and sugar water to freeze it

Answer 3

that last answer didn't make sense because he is a moron... test it ur self instead of guessing or on theory

Ok that was mean and i really need help with my Science project fix it or be reported. Thanx

Answer 4

If the same weight of sugar or salt is used, and the same amount of water in every case, AND the heat transfer situation is the same (meaning that the same temperature at start, same freezer temperature, and using the same container, same freezer, location, airflow, etc., etc.) the water will freeze faster than the sugar water, which will freeze faster than the salt water, assuming that the freezer is cold enough to freeze them.

The more "stuff" you dissolve in the water, the lower the freezing point of that solution, which means there will be both a delay in the start of freezing (again assuming the same starting temperature and heat transfer situation) of the solutions (water with stuff dissolved in it, as opposed to the pure water), as well as a slowing of the solution freezing because the temperature difference between the solution (now freezing at a lower freezing point) and the freezer is smaller (smaller temperature difference means less heat energy transferred in the same period of time).

Sugar is a heavier molecule than salt, meaning that if the weight of a pile of salt and a pile of sugar is the same, there are more salt molecules than sugar molecules. Salt also is ionic, so each molecule comes apart into two pieces in solution, so each molecule counts double for determining the amount of freezing point depression (the technical term).

Answer 5

plain water cause it has a higher temperature

Answer 6

Sugar water will freeze faster than salt water.