Which of the following methods can be used to increase the average kinetic energy of the molecules of an object?

a. increase the size of the molecules.
b. slow down the speed of the molecules.
c. decrease the amount of heat supplied.
d. increase the temperature of the object.

Answer D. Increase the temperature of the object.

Explanation:

Kinetic energy: It is the energy of the particle derived when the particles are at its motion (movement)

Formula to calculate kinetic energy

From the above equation kinetic energy depends on

1. mass of the particle.

2. velocity of the particle.

Unlike mass of the particle , velocity of the particle can be increased by increasing the temperature of the particle.

the answer is a and have a great day

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.