The density of water is the greatest at a temperature of?

Question

A. 4k.
B. 277 k.
C. 0 k.
D. 273 k.

Answer 1

It's 277K.
Water density is greatest at 4 degrees Celsius (O degrees Celsius = 273K, so 4 degrees Celsius = 277K).
When the temperature decreases to 0 Celsius, the density of water decreases to 0.999 g/cm^3 and the volume increases about 10%.

Answer 2

The density of water is the optimal at 4degree celcius because of the closest putting of water molecules at this temp. Water differs from all different molecules in this ingredient as that's density isn't optimal at that's freezing temperature. that's reason is the cage like shape made by ability of water molecules as a results of Hydrogen bonding, after freezing that decreases the density. So the appropriate answer is 277K

Answer 3

In spite of the fact that the decreed definition of the gram specified water at 0 °C—a highly stable temperature point—the scientists chose to redefine the standard and to perform their measurements at the most stable density point: the temperature at which water reaches maximum density, which was measured at the time as 4 °C.(39.2° F)
0 degree cel = 273k
ie
4°C = 273+ 4
= 277k
======

Answer 4

D.273
The freezing point of water is 0°C
... (32°F, 273 K). .....
In the absence of nucleators water will supercool to as low as −70°C (−94°F, 203 K) before freezing. [1] But in the presence of nucleating substances the freezing point of water is the same as the melting point. Nucleating agents, such as dust, are commonly present in the environment, which is why rain water and tap water will normally freeze at the melting point of water.
http://en.wikipedia.org/wiki/Freezing

Water attains its maximum density at a temperature of 4° C (39° F) and expands upon freezing. Like most other liquids, water can exist in a
http://encarta.msn.com/encyclopedia_761573158/Water.html
The Kelvin scale is a thermodynamic (absolute) temperature scale where absolute zero — the coldest possible temperature — is zero kelvin (0 K).
http://en.wikipedia.org/wiki/Kelvin

Answer 5

B.

273k is the freezing point of water. However when water freezes it expands.

277k is above freezing but not hot enough for the liquid to become a gas.

In fact water is most dense at 4 degrees C. So 277k is the closest to this point (3.85 degree C to be exact)

Answer 6

Ok I know this one!
Water is most dense at -4 degrees celcius.
This is why ice always floats on water.
This means water at -4 degrees is more denser than the ice.
The answer is [B.277k?]

Answer 7

Water reaches it's maximum density at 4°C or 277k :-)

Answer 8

a

Answer 9

c freezing temps...

Answer 10

idk?

ummmmmm............

D?