Question

select the correct answer from each drop-down menu. when a liquid is cooled, the kinetic energy of the particles, the space between the particles, the force of attraction between the particles and the matter changes its state to solid. decreases increases remains the same next

Explanation:

1. For the kinetic energy of particles when a liquid is cooled: Kinetic energy is related to the motion of particles. Cooling a liquid means reducing the temperature, which slows down the particles' motion. So, the kinetic energy of the particles decreases.
2. For the space between the particles: As the liquid cools and particles slow down, they come closer together. So, the space between the particles decreases.
3. For the force of attraction between the particles: When particles are closer (as space between them decreases), the intermolecular forces of attraction become stronger (or we can say the effective force of attraction increases as the distance between particles reduces, but in the context of cooling a liquid to solidify, the force of attraction between particles increases as they get closer and form a more ordered structure). However, for the first two blanks (kinetic energy and space between particles), the correct option from the dropdown (as per the visible dropdown for one of them) and the physics of phase change, the first blank (kinetic energy) should be "decreases", the second blank (space between particles) should be "decreases", and the third blank (force of attraction) should be "increases". But since the dropdown shown has "decreases", "increases", "remains the same", let's address each blank:

• Blank 1 (kinetic energy of particles): When temperature decreases, particle motion slows, so kinetic energy decreases. So option: decreases.
• Blank 2 (space between particles): As particles slow, they pack closer, so space between them decreases. Option: decreases.
• Blank 3 (force of attraction between particles): As particles get closer, intermolecular forces (attraction) become more significant, so the force of attraction increases. Option: increases.

But since the user's image shows a dropdown with those three options, and the first blank (kinetic energy) and second blank (space between particles) and third (force of attraction) need to be filled. Let's confirm each:

1. Kinetic energy of particles when liquid is cooled: decreases (because temperature is related to average kinetic energy; cooling reduces temperature, so KE decreases).
2. Space between particles: decreases (particles move less, come closer).
3. Force of attraction between particles: increases (as particles are closer, the attractive forces have a stronger effect, or we can think that in the solid state, intermolecular forces are stronger than in liquid, so as liquid cools to solid, the force of attraction increases).

Answer:

1. For "the kinetic energy of the particles": decreases
2. For "the space between the particles": decreases
3. For "the force of attraction between the particles": increases

(Note: If the dropdowns are separate, each blank should have the respective option. The first two blanks (kinetic energy and space between particles) both have "decreases" as the correct option from the dropdown choices, and the third has "increases".)