Which of the following equilibrium systems most favors the products?

a.)ci2(g) + 2no2(g) 2no2ci(g); keq = 1.8

b.)n2(g) + 3h2(g) 2nh3(g); keq = 345

c.)2hci2(g) h2(g) + ci2(g); keq = 2.0 × 10-7

d.)ci2(g) + 2no(g) 2noci(g); keq = 3.7 × 108

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.