According to this phase diagram of water, what happens when you increase the pressure from 50 kpa to 150 kpa on an ice cube at 0° c

The answer is: According to this phase diagrams, when you increase the pressure from 50 kPa to 150 kPa on an ice cube at 0° C, the ice cube melts.

Why?

Since we are increasing the pressure from 50 kPa to 150 kPa on an ice cube at 0° C the melting point of the water will decreases, meaning that the ice will melt.

When an extreme pressure is applied on an ice cube, we are making less space between its molecules, so, the ice cube will melt and not for the effect of the temperature.

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why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

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.