Understanding thermodynamics through the concepts of absolute zero and the distribution of molecular speeds Thermodynamics is the study of work, heat and energy of a system (NASA, 2010). The laws of thermodynamics help explain the properties of thermodynamics in more detail. The first law explains that the internal energy of a system can be increased by adding energy to the system or by performing work on the system (Serway & Vuille, 2012). An internal energy system is the sum of its kinetic and potential energies. The first law states more simply that the change in internal energy of a system is caused by an exchange of energy through the system, usually in the form of heat, or by work done on the system. This relationship can be represented by the equation:ΔU = Q + WΔU is the change in internal energy, Q is the energy exchanged (heat) and W is the work done on the system. Often, energy is exchanged with a gas during work. is done either with gas or with gas. When we work on gas, the work is negative; whereas when the work is done by gas, the work is positive (Serway & Vuille, 2012). The internal energy of an ideal gas is represented by the expression: U = (3/2) nRTFor a monatomic gas where its particles consist only of single atoms, its change in internal energy is represented by the equation : ΔU = (3/2)nRΔTn is the number of moles, R is the gas constant (8.31 J/Kmol) and ΔT is the temperature change measured in Kelvins. Temperature is measured using many different units around the world. In the United States, Americans generally measure temperature in degrees Fahrenheit. Degrees Celsius are the most commonly used around the world. In physics, Celsius is also commonly used, as is middle of paper. Symbols are also embedded in the technology of our world, including the way energy is extracted from a refrigerator and transmitted as heat to the kitchen; how a heat engine absorbs energy in the form of heat and uses this energy to create new mechanical and electrical energy; or how an air conditioner uses a heat pump to extract energy from cold outdoor air and deliver energy in the form of heat to warmer indoor air. By understanding how thermodynamics is a study of physics, it will also be easier to recognize its influence on our daily lives.References1. Department of Physics. (2010). Physics Laboratory Manual 174/184. Oxford: Kendall Hunt.2. NASA. (2010). What is thermodynamics?. Retrieved from http://www.grc.nasa.gov/WWW/k-12/airplane/thermo.html3. Serway, RA and Vuille, C. (2012). University physics. (9th ed.). Boston: Cengage learning.