Question

Use the drop-down menus to complete the sentences describing what happens when the temperature of a fluid
increases.
The kinetic energy of the molecules
The speed of the molecules
The density of the fluid
The fluid

Answer 1

when the temperature of a fluid  increases the kinetic energy of the molecules increases.

Explanation:

• when there is a change in liquid temperature then there will be changes in its properties especially in the (KE) kinetic energy of molecules and the density of the fluid.  
• Due to the addition of the heat kinetic energy of the fluid molecules as it gains the heat, the intermolecular movement increases so there will be in the increased collision between the molecules which results in breaking the intermolecular force.  
• Whenever the heat is applied to any matters nature is to tend to expand so the fluids also expand which results in the decrease in the density of the liquid.
• And also due to the increases in the kinetic energy, the speed of the fluid also increases.

Answer 2

According to the kinetic-molecular theory, when the temperature of a fluid  increases:

1. The kinetic energy of the molecules increases.

2. The speed of the molecules increases.

3. The density of the fluid decreases.

4. The fluid rises.

The kinetic-molecular theory of gas states that gas molecules typically exhibit a perfectly elastic collision and are always in a state of continuous (constant) random motion.

This ultimately implies that, the average kinetic energy of gas molecules is directly proportional (highly dependent) to both the temperature and speed of the molecules and inversely proportional to its density in accordance with the kinetic-molecular theory.

Deductively, we can conclude that the following happens when the temperature of a fluid  increases:

• The kinetic energy of the molecules increases.

• The speed of the molecules increases.

• The density of the fluid decreases.

• The fluid rises.

Read more on kinetic-energy here: brainly.com/question/11640748