What happens to the particles of a solid when the solid changes into a liquid? A. They increase in size. B. They decrease in size. C. The attractive force between them increases. D. The attractive force between them decreases. You have a solid substanc...
Does H2 or O2 have a lower boiling point? Explain your reasoning. What was the purpose of adding boiling chips to water in the beaker during the Dumas Method? Assume that the particles in table salt (NaCl) vibrate just as forcefully as the particles in lead...
If you increased the volume by multiplying the original by 20, and had 45 particles, what would the entropy change be?What is the change in entropy when a) 100 g of ice is melted at 0 degree C b) 100 g of water is vaporized to ...
What Happens To Water On A Hot Surface? The boiling point of water is around 100oC at sea level, but why exactly does water boil at this particular temperature? Temperature, in simple terms, is a measure of the kinetic energy of the measured particles. This means that at higher temp...
the researchers found a protein attached to the cells that is important to the process of tasting carbon dioxide. When carbon dioxide comes into contact with this protein, the protein knocks off particles called protons. These protons(质子), in turn, travel to the brain, which says ,” Hey!
constantly collide with each other, energy is transferred to particles near the surface. When enough energy gets transferred, some particles are removed from the substance as free gas particles. The temperature and pressure conditions under which a liquid becomes a gas is known as itsboiling point...
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out...
the tube would hit bottom at -273℃. Scientists refer to this bottoming out as absolute zero. At this point, particles will have minimal motion and disorder disappears. Because there is minimal movement, there is nothing to create heat, meaning that nothing can be colder than absolute zero. ...
Which are the first particles to evaporate from a liquid? What is latent heat of vaporization of water? What is the difference between saturated vapor and superheated vapor? What is the maximum amount of water vapor air can hold at a given temperature called?
What particles are affected by magnetic fields? What causes current to flow in an electrolytic cell and why? Explain what causes pressure in a container. How come two non-polar substances are able to easily mix? What makes extremely heavy elements so unstable?