Show the calculation of the heat involved in converting 30 grams of steam at 110oC to 30 grams of ice at -20 oC. ∆Hfusion = 0.334 kJ/g; ∆Hvapor = 2.26 kJ/g; c (water) = 4.184 J/g oC; c (ice) = 2.09 J/g oC; c (steam) = 1.86 J/g oC

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.