What volume of methane at STP would be required to convert a 2.1 kg block of ice at −20 ∘C to water at 20 ∘C, assuming that no heat is lost? The heat of fusion for ice is 6.01 kJmol−1 . The heat capacity of ice is 2.108 Jg−1∘C−1, the specific heat capacity of water is 4.184 Jg−1∘C−1 and the heat of combustion for methane is 891 kJ.

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.

since electrons are negative the answer is neagtaive

answer: i dont know the answer but this might

explanation:

l