Universal Solvent-Water?

Question

could an example of surface tension be filling a glass jar with water as high as you can without spilling it and adding pennies until water spills and then seeing how many pennies did it hold without spilling. Can surface tension also be filling a jar to the very tob and taking a needle and getting it to float on the surface of the liquid?

Can filling a cup 1/2 way with water and placin an ice cube in the water be an example of cohesiveness and highest density at 4 degrees Celcius?

Can dipping a clear straw with a small diameter about half way in water be an example of capillary action? Would the same thing occur if the tube had a diameter 5 times as large?

If you place a container of water on a hot stove until it reaches 100 degrees celcius in order to boil this gives water the property of high heat of vaporization but WHY does water need so much heat at the molecular level to change state?

what would be an example of high specific heat?

Answer 1

The common answer to all of these points is the strong polarity of water. The very strong attractive force creates the relatively high surface tension, capillary action, high specific heat, high boiling point, etc. It takes more energy to move the water molecules around because they are strongly attracted to each other.

Answer 2

UR QUESTION: Can surface tension also be filling a jar to the very toP and taking a needle and getting it to float on the surface of the liquid?
ANSWER. NO; needle will not float.


UR QUESTION: Can filling a cup 1/2 way with water and placin an ice cube in the water be an example of cohesiveness and highest density at 4 degrees Celcius?

ANSWER: NO

UR QUESTION:Can dipping a clear straw with a small diameter about half way in water be an example of capillary action? Would the same thing occur if the tube had a diameter 5 times as large?

ANS: i m not sure about that i think that if the water sticks to straw then it is capilarry action and if it is capillary action then i would happen regarding the size of a straw

UR QUESTION: If you place a container of water on a hot stove until it reaches 100 degrees celcius in order to boil this gives water the property of high heat of vaporization but WHY does water need so much heat at the molecular level to change state?
ANS: the temperature of water needed to be high enough to increase the movement between molecules when temperature increases movement aso increase between particles between mlcs
the boiling point of water is high because the bonding between h2o mlcs is hydrogen bonding.

The specific heat of water is 1.00 cal/g ºC


I HOPE IT HELPS BYE