Question

What causes the volume of water to differ at 25 degrees and 60 degrees Celsius?

Answer 1

The temperature of any material is a measure of the average kinetic energy of all the atoms in the material. As you increase this kinetic energy (temperature) then the atoms are more energetic the atoms vibrate with more energy this means each atom takes up more space and so the total volume of the material increases aswell

Answer 2

as water gets heated, the molecules vibrate so the more heat you put into the water the more it vibrates, so as it vibrates more the spaces between the molecules widens thus creating more volume.

Answer 3

thats right the VOLUME OF NOT ONLY WATER BUT ANY SUBSTANCE CHANGES WITH TEMP. see as temp changes the mass alone remains constant as its the quantity of substance contained in the vessel. but density and volume are dependent on temp. they inc with inc in temp due to inc in the molecular vibrations. see, as the temp inc, the kinetic energy of molecules inc. we know that water has large vander waal's force of attraction. this force counter balances the translational kinetic energy and as the result the water remains in the vessel rather than escaping out. but as temp inc, the kinetic energy inc and this increased k.e. becomes a little stronger and tries to pull the molecule against the vanderwaal's forces. as a consequence the molecules are now more seperated from each other than before which implies volume increases

Answer 4

If you look in the CRC Handbook of Chemistry and Physics, there's probably tabulated data on the density of water at various temperatures. Plot and fit the data to the form: . . Density = A*T -B, . . where T is the temperature, A is the slope of the line, and B is the y-intercept.