Unlike solid and liquid states, molecules in a gaseous state show random motion. The "Ball Method" as it later came to be called, became the standard treatment for leprosy for decades. That is the reason, gases take the shape of container and spread quickly in space. When heated, these solids get softer and softer over a wide range of temps before they melt. The random motion of molecules in the gaseous state is due to high kinetic energy in molecules. PDF] States of Matter - Free Download PDF. These motions are very common in solid state.
These states of matter can be differentiated on the basis of the position or motion of their constituent particles. So please help us by uploading 1 new document or like us to download: OR LIKE TO DOWNLOAD IMMEDIATELY. The molecules in a liquid will therefor not necessarily spread out to fill a container's entire volume. Ishmael's journey to survive continues in a state of misery. Where, E=Energy, k=boltzmann constant, T=temperature. They can show all three types of molecular motion: vibrational, rotational and translational motion. Resistance to motion that exists between the particles of a liquid when they move past each other. Molecular motion is defined as the movement of constituent particles or molecules in a certain direction. They have weak intermolecular interactions between them. He treasures the few moments of joy that bring relief from his constant sorrow. Chapter 10 review states of matter of time. Moderately strong intermolecular forces. They acquire the shape of the container in which they are. Examples: glass, rubber, many plastics, soot.
Similarly, heat transfers energy among constituent molecules that increase the kinetic energy of molecules. In translational motion, molecules move in certain directions. They tell stories to each other and Ishmael recalls his name-giving ceremony. The attraction can counteract gravity and continues until the weight of the liquid balances the pull of gravity.
Matter can exist in three states- solid, liquid and gas. The men lead the ceremonies and smoke together. The tales are horrific, including accounts of slaughter, torture, and rape, and Ishmael realizes why they so often rely on silence to protect themselves from their past. When Saidu dies, his body must be wrapped in white linen and placed in a wooden coffin.
The stronger the attractive forces between the particles, the greater the resistance to flow, and the greater the viscosity. To pass the time one night, Musa tells the story of Bra Spider who also struggled for food and survival. Exert pressure on any surface with which they collide. We are a non-profit group that run this website to share documents. Chapter 10 review states of matter section 2 answers. Examples of viscous liquids: honey, glycerin, motor oil. Metallic (gold, copper, silver). All atoms or molecules require different amounts of energy for different types of molecular motion.
Different Types of Motion. Lack the geometrical planes or edges along which to break when stress is applied; shatter into a wide variety of irregular shapes and angles. The meat is stolen and eaten by a stray dog and the boys blame each other. Examples: water pulled up thin glass tubes, water "wicking" into paper towels, water moving up from the roots to leaves of plants. Advanced Chemistry - Inorganic / Characteristics of Solids, Liquids, Gases. This is because temperature is the measurement of the average kinetic energy of the molecules and represents the motion of molecules. The light absorbed during motion can be used to measure molecular motion. Molecules in liquids are very mobile. Moderate KE - enough to "stretch" the intermolecular forces. We can measure the frequencies of absorbed light and correlate them with some bonding arrangements which are present in the molecules.
The particles of the solid are arranged in an orderly, geometric, repeating pattern. His thoughts return constantly to his family and his longing to see them and know their fate. Ionized (charged) particles. Only slightly less dense (about 10%) than solids. The gender roles are tested in these times of war as women have to learn to defend themselves and boys like Ishmael have to cook to survive. Low kinetic energy (KE). In this chapter, each of the other boys — Musa, Alhaji, Kanei, Jumah, Moriba, and Saidu — share their stories of the rebels attacking their village. Particles vibrate in place. High density (as compared to same substance as a liquid or gas). The descriptions of the ceremony reveal a traditional culture with clearly defined male and female roles. Electronic motions cause a change in the colour of substances. We are a sharing community. Even in desperate times, the burial customs are enforced.
They choose not to harm the dog, but they realize that the day may come when they will be desperate enough to do something completely uncustomary, like eat dog meat for survival. Saidu's body must be buried before nightfall or they must take the body from the village. Molecular Motion Definition. Therefore, they show the least random molecular motions.
Along the way, a crow falls from the sky, which they consider a bad omen, but they are hungry enough to eat the bird. Leprosy has been a devastating disease throughout much of human history. Viscosity increases as the temp decreases. These methods also provide sufficient information about the structure of molecules. Summary and Analysis. They do not have a fixed position but show random movement. The burial ground has row after row of mounds of freshly dug graves, many of them anonymous. Incompressible – not able to be squeezed together into less space. So we can say that all particles show motion more or less. So we can say that random motion is related to temperatures, intermolecular forces of attractions, the kinetic energy of molecules and heat transfer. Low rate of diffusion (millions of times slower than in liquids). The women prepare the food and dress to impress each other.
In liquids molecules are adjacent with molecules, allowing intermolecular forces to have a greater effect than they do in gases. Thank you for interesting in our services. The molecular motions are affected by heat and temperature. An elder man helps the boys have a funeral service and leads them to a burial ground. Recent flashcard sets. Force that tends to pull adjacent parts of a liquid's surface together, thereby decreasing the surface area to the smallest size possible. Attraction of the surface of a liquid to the surface of a solid. Each type of absorption indicates a certain type of bond-like absorption frequency of the C-H bond is different from H-H or O-H bond. Low density (approx. When he wakes, they help him to a nearby village and are surprised to see how crowded and lively the village is. Ishmael's grief and uncertainty overwhelm him. Exhibit capillary action.
For example, the thickness, or viscosity, of the chaulmoogra oil was due to its intermolecular forces. He worries that each time he faces death, a part of him dies a little.