Chemical Thermodynamics Assignment Help
Since we all are aware that chemistry is the study of the various types of elements that are present in and around us. Not only that, chemistry is also the grouping of such elements based on the type of reactions they make, the melting and boiling point, the physical and chemical properties of such elements. One such property that is very famous among chemists is the reaction of the element in the presence of heat, from less to more than the element can bear, all amounts of heat. This study of elements in the presence of different types of temperatures is known as chemical thermodynamics. If you are one of those students who is facing some of the other kind of difficulty in the subject of chemical thermodynamics, worry not because in this article we will be discussing some of the very basic concepts of thermodynamics, starting from the basic laws of thermodynamics to some of the complex things that are sometimes included in the curriculum.
Overview of Thermodynamics
To start with the studying part, the student must first be aware, what actually is meant by thermodynamics. Since one always learns faster from the examples that one sees in the day to day life, we aregoing to give you one. Have you noticed how the inside of the refrigerator is cooler than that on the outside? If yes, my dear friend, you are watching an example of how thermodynamics works. To understand and begin with the laws of thermodynamics, a child needs to understand what actually a system and its boundary means. A system means something that is included in the whole process, for example when you are standing on a moving bus then you and the bus included is a system. To add to the existing knowledge, the student can also know what an isolated system means. An isolated system is that kind of system that does not allow the transfer of energy, either inside the system or on the outside of the system. With this statement, I hope that the purpose and the meaning of the word system are clear to you.
Laws of thermodynamics
Before starting with thermodynamics, one thing that each and every student should be aware of is the laws of thermodynamics. There are two laws of thermodynamics and they are applicable almost everywhere when studying about thermodynamics and the properties associated with it. The laws are as following:
- First law of thermodynamics: this law of thermodynamics states that energy can neither be created nor be destroyed, it can just be transferred from one form to another. This probably applies to almost all the field related to thermodynamics, be it energy or temperature. One of the best examples of the first law of thermodynamics is a petrol engine where when the petrol is fed to the engine, it starts producing mechanical power, in this form we can say that the energy that is produced by the engine is being made from the potential energy that is already stored in the fossil fuel, that in this case happens to be petrol. One of the best use of the same that is being done in the industry is about the production of electrical power from the various types of fossil fuels in the market, coal being the most famous and the one that is being used most extensively.
- The second law of thermodynamics: to understand the second law of thermodynamics, one first needs to know the basics of entropy. To know the same, you should read our article on the basic terms related to chemistry and their meaning. Talking about the second law, the second law of thermodynamics states that the total energy in a system or in this specific case, the total entropy of an isolated system can never reduce from its actual value. In a way, this law is backed by the first law of thermodynamics which states that the number of.
Important types of energies in thermodynamics
When we study thermodynamics, we arealways interested in the types of energies that are present in a system, that could be the energy that the system absorbs or the energy that the system releases. These energies can be divided into four parts. They are known as internal energy, entropy, enthalpy and Gibbs free energy. They are described in detail in the paragraph below:
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- Internal energy: just like any other system that is being talked about in this article, internal energy of a system is the energy that is present in a particular system.
- Entropy: the total amount of energy inside an isolated system that cannot decrease over time is known as the entropy of a system
- Enthalpy: the total amount of energy that a system can produce, irrespective of the form of energy being talked about is known as the enthalpy of the system. This includes the amount of heat energy present in the system along with the pressure that the system is having.
- Gibbs free energy: the energy that is left after taking out the entropy out of enthalpy is known as the Gibbs free energy of any system in respect to the chemical thermodynamics.
We hope that with this article, we were able to help you clear the doubts that were related to basic chemical thermodynamics, the laws of thermodynamics and the types of energies present in a system.