05 Feb Chemistry Tuition
States of Matter
Chemistry tuition class in Miracle Learning Centre is fun and enriching. You will learn about the different aspects of Science and how to learn study skills too. If you do not like or understand science, you must definitely attend the chemistry tuition class at Miracle Learning Centre to arouse and reignite your interest. Let us learn about the States of Matter in this Chemistry tuition lesson.
Matter can exist in three physical states namely solid, liquid or gas. Solid and liquid have fixed volume while gas has no fixed volume. In addition, a solid has a fixed shape and cannot be compressed while liquid and gas has no fixed shape and takes the shape of its container. The liquid can be compressed a little while gas can be easily compressed.
The three states can be changed from different states to states through different processes. Solid can be changed to gas through the process of sublimation. For example, when heating the black solid iodine, it will change to violet-iodine gas. Furthermore, when solid changes to liquid, the process is called melting and boiling or evaporating is the process of changing liquid to gas. In addition, gas can be converted to liquid through the process of condensation and when liquid converts to solid, it is called freezing. When gas is converted to solid directly it is called cooling.
But recently two more states have been discovered.
Plasma – Plasma is not a common state of the matter here on Earth, but maybe the most common state of matter in the universe. Plasma consists of highly charged particles with extremely high kinetic energy. The noble gases are often used to make glowing signs by using electricity to ionize them to the plasma state.
In 1995, technology enables scientists to create a new state of matter, the Bose-Einstein condensate (BEC). Using a combination of lasers and magnets scientists cooled a sample of rubidium to within a few degrees of absolute zero. At this extremely low temperature, molecular motion comes very close to stopping altogether. Since there is almost no kinetic energy being transferred from one atom to another, the atoms begin to clump together. There are no longer thousands of separate atoms, just one “super atom”. A BEC is used to study quantum mechanics on a macroscopic level.
Miracle Learning Centre would like to bring you more facts on chemistry tuition concepts and experiments. We hope you have understood this chemistry tuition lesson. Science tuition lessons are created to help students excel and we believe “You are a MIRACLE!” and you can do it too.
We at Miracle Learning Centre offer innovative classes of A level chemistry tuition, O level chemistry tuition, JC chemistry tuition for the students of Singapore.