A student sets up the following equation to convert a measurement.(The stands for a number the student is going to calculate.) Fill in the missing part of this equation. Note: your answer should be in the form of one or more fractions multiplied together. [87. J/mmol. oC] = ? kJ/mol. oC

87J/mmol°C * 1000/1000 =  87 kJ/mol°C

Explanation:

As you can see, the student is converting the Joules to kJ (1000J = 1kJ) and the mmol to mol (1000mmol = 1mol) as follows:

87J/mmol°C * (1kJ / 1000J) = 0.087kJ/mmol°C

0.087kJ/mmol°C * (1000mmol / 1mol) = 87kJ/mol°C

That means the conversion factor is:

87J/mmol°C * 1000/1000 =  87 kJ/mol°C

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.