Chemistry Tutorial by University of Arizona Review the basics of chemistry you'll need to know to study biology. Large Molecules by University of Arizona Learn about structures and properties of sugars, lipids, amino acids, and nucleotides, as well as macromolecules including proteins, nucleic acids and polysaccharides. Clinical Correlates of pH Levels by University of Arizona Learn how metabolic acidosis or alkalosis can arise and how these conditions shift the bicarbonate equilibrium.
Solids can be hard like a rock, soft like fur, a big rock like an asteroid, or small rocks like grains of sand.
The key is that solids hold their shape and they don't flow like a liquid. A rock will always look like a rock unless something happens to it. The same goes for a diamond. Solids can hold their shape because their molecules are tightly packed together. You might ask, "Is baby power a solid?
It's soft and powdery. It's just a ground down piece of talc. Even when you grind a solid into powder, you will see tiny pieces of that solid under a microscope.
Liquids will flow and fill up any shape of container. Solids like to hold their shape. In the same way that a large solid holds its shape, the atoms inside of a solid are not allowed to move around too much.
Atoms and molecules in liquids and gases are bouncing and floating around, free to move where they want. The molecules in a solid are stuck in a specific structure or arrangement of atoms. The atoms still vibrate and the electrons fly around in their orbitals, but the entire atom will not change its position.
Solid Mixtures Solids can be made of many things.
They can have pure elements or a variety of compounds inside. When you have a solid with more than one type of compound, it is called a mixture. Most rocks are mixtures of many different compounds. Concrete is a good example of a man-made solid mixture. Granite is a mixture you might find when you hike around a national park.
Granite is made of little pieces of quartz, mica, and other particles. Because all of the little pieces are spread through the rock in an uneven way, scientists call it a heterogeneous mixture. Heterogeneous mixtures have different concentrations of compounds in different areas of the mixture.
For example, there might be a lot of quartz and very little feldspar in one part of the granite, but only a few inches away those amounts might flip.
Crystals On the other end of the spectrum is something called a crystal. A crystal is a form of solid where the atoms are arranged is a very specific order. Crystals are often pure substances and not all substances can form crystals because it is a very delicate process.
The atoms are arranged in a regular repeating pattern called a crystal lattice.
Table salt NaCl is a great example of a crystal you can find around your house. The sodium Na and chlorine Cl atoms arrange themselves in a specific pattern to form the cubic salt crystals. Allotropes A diamond is another good example of a crystal.
Diamonds are a crystal form of pure carbon C.Learn and research science, chemistry, biology, physics, math, astronomy, electronics, and much more. timberdesignmag.com is your scientific resource and internet science PORTAL to .
It is in fact that similarity of the molar specific heats of metals which is the subject of the Law of Dulong and Petit. The similarity can be accounted for by applying equipartition of energy to the atoms of the solids. From just the translational degrees of freedom you get 3kT/2 of energy per atom.
Conductivity is a measure of water’s capability to pass electrical flow. Salinity and total dissolved solids calculations are derived from conductivity. Specific Heat of Solids Object: To determine the specific heat of a given solid specimen. Theory: Thermal energy is an internal energy that consists of the kinetic and potential energies associated with the random motions of the atoms, molecules, and other microscopic bodies within an object.
The specific heat of some commonly used solids is given in the table below.. For conversion of units, use the Specific heat online unit converter.. See also tabulated values of specific heat of gases, food and foodstuff, metals and semimetals, common liquids and fluids and other common substances as well as values of molar heat capacity of common organic substances and inorganic substances.
Specific Heat of Solids. Salvacion, Jozel John. P. Specific Heat Capacity, or Specific Heat, of Aluminum, Copper, and Lead with the use of a Calorimeter, Thermometer, and an Electric Steam Generator.
Using the method of mixtures, the metal samples should undergo change in .