0
If you heat a fluid the number of collisions between molecules will what?
Wiki User
∙ 9y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What are Semi fluid solutions of salt and molecules?
Cytoplasm
What factors increase evaporative cooling?
Evaporation is the (slow) process of liquid molecules turning into gas and escaping from the fluid. Because the molecules need a place to escape evaporation can only occur at the surfaces of the fluid that are not in contact with a container, e.g., to top of a glass of water which is exposed to the air. Therefore,The exposed surface area is important at determining the rate. Volume or the amount of fluid does not change the rate of evaporation. Granted it will take longer for a larger volume of fluid to evaporate, but the rate (mass per time) at which it evaporates will be irrespective of volume assuming other influencing variables are held constant. Again, this is because the liquid molecules are not escaping from the volume everywhere at once, they are escaping only at the surface exposed to air.Heat will effect the rate of evaporation. The molecules of a hot fluid are vibrating more rapidly and with more energy than in a cool fluid. The added energy of heat therefore makes it easier for a given molecule to escape the fluid.What the fluid is comprised of will influence the rate of evaporation as well. If the fluid is made up of large charged molecules, the molecules will escape at a slower rate because more energy is required to lift their mass and overcome their electromagnetic interactions with each other to allow the molecules to escape. Also, a mixed fluid can evaporate faster or slower depending on how the different molecules interact with each other.The vapor pressure (amount of the molecules already in the gas phase surrounding the liquid) will also influences the rate of evaporation. For example, at the surface of water there are molecules going from liquid to gas but ALSO from gas back to liquid. The rate of evaporation is determined by the difference between these two processes. If there are a lot of water molecules in gas phase surrounding the area of fluid that is exposed, a greater number by chance will replace the molecules that are escaping the fluid. So the if you measuring the rate at which the mass of water in a container changes over time [which is the same as measuring the rate of evaporation], it will slow down when the fluid is surrounded by more water molecules in the gas state (the vapor pressure is greater).Accordingly, the fastest way to evaporate a fluid would be to have it in a vacuum that immediately removes the gas before it could go back into the liquid state.
What fluid force opposes motion?
Both the friction between the moving body and the liquid, and between the molecules of the liquid. And other intermolecular forces the keep the liquid together (like Van-der-Waal force)
Describe how molecules move in fluid?
Molecules, due to constant thermal motion, enables them to move from one region to another with a velocity that depends on their mass, shape, the temperature and viscosity of the medium. Brownian motion is also a factor - this is where the bombardment of the molecules are taken into consideration (colliding with one another).
How are hydrogen molecules different to the water molecules?
One big difference: Hydrogen are an extremely explosive gas molecules (H2), while water is a fire extinguishing fluid (H2O).
What are two characters of fluids?
Viscosity refers to a fluid's resistance to flow, which is influenced by the internal friction between its molecules. Surface tension is the result of cohesive forces between molecules at the surface of a fluid, causing it to behave as if it were covered by an invisible membrane.
How does kinetic energy affect diffusion rate?
The greater the collision rate, the greater the diffusion rate. As the molecules of the substance that is diffusing are more concentrated, the molecules collide more. As they diffuse and spread apart, there are less collisions and diffusion slows down.
What are the function of capillary?
the movement of a liquid along the surface of a solid caused by the attraction of molecules of the liquid to the molecules of the solid
A circular flow of warmer fluid and cooler fluid is called?
Molecules
Why does air expand when it is heated?
The molecules of any fluid (including that of air) move faster when the fluid is being heated, because a result of increased kinetic energy (this energy is gained and increased because of increasing heat transfer rate or heat energy transfer). (note that heat transfer rate increase by a constant multiplied by temperature change between the initial and final temperature of the gas/any fluid in question). As a result of this molecular speed and kinetic energy increase, the molecules collide (with each other) more often as the temperature increases. The collisions make the molecules move far and further apart from each other (due to momentum), needing an increased volume/space to cantain them.
How are the liquid molecules arranged?
In a fluid manner
How do cohesion and adhesion differ?
Cohesion and adhesion differ because cohesion is an attraction between molecules of the same substance. Adhesion is an attraction between molecules of different substances.Adhesion is the intermolecular attraction between 'unlike-molecules' (usually referred to the attraction or joining of two different objects of fluids to each other).Cohesion is the intermolecular attraction between 'like-molecules' (usually referred to the strength with which the particles of an object of fluid attract to each other).== == == ==
The collision of the molecules of a fluid inside the surface of their container best describes?
The collision of the molecules of a fluid inside the surface of their container best describes pressure.
How do molecules move in a fluid?
Small particles or molecules suspended in a liquid or gas will move by what is called Brownian motion. Brownian motion is a random motion of particles resulting from collisions with other matter. Unless otherwise disturbed, Brownian motion will eventually diffuse the suspended particles evenly throughout the liquid or gas.
What are Semi fluid solutions of salt and molecules?
Cytoplasm
What do molecules do when heat is transferred by conduction?
When heat is transferred by conduction, molecules in a substance or material interact in a specific way to transfer thermal energy from a region of higher temperature to a region of lower temperature. Here's what happens at the molecular level during heat conduction: **Vibration and Kinetic Energy:** In a substance, molecules are constantly in motion due to their thermal energy, which is often referred to as kinetic energy. They vibrate, rotate, and move randomly. **Hotter to Cooler:** When two regions of the substance are at different temperatures, such as a hotter region in contact with a cooler region, the molecules in the hotter region have higher kinetic energy compared to those in the cooler region. **Collision and Energy Transfer:** Molecules with higher kinetic energy in the hotter region collide with neighboring molecules. During these collisions, they transfer some of their kinetic energy to the cooler, less energetic molecules. This transfer of energy occurs through direct interactions between neighboring molecules. **Equilibrium:** Over time, as more collisions and interactions take place, the kinetic energy is transferred from the hotter region to the cooler region. This continues until thermal equilibrium is reached, where the temperatures of both regions become equal, and there is no net heat flow between them. Conduction is most effective in materials that are good conductors, such as metals, as they have highly mobile electrons that can facilitate the transfer of kinetic energy. Insulators, on the other hand, do not conduct heat as effectively because their molecules are less mobile and have fewer free electrons. In summary, during heat conduction, the molecules in a substance transfer kinetic energy from faster-moving, hotter molecules to slower-moving, cooler molecules through direct collisions, leading to a flow of thermal energy from the hot region to the cold region until thermal equilibrium is reached.
What happens to molecules in a heated fluid?
Molecules will rapidly spread apart and move in every direction in the presence of a heated fluid, and tightly bunch up in cooler fluids.
