CHEM1211-Thermochemistry Project Name l: Types of Energy _c page 3 is the study
ID: 587178 • Letter: C
Question
CHEM1211-Thermochemistry Project Name l: Types of Energy _c page 3 is the study of heat (energy) changes energy as anything that can cause a change in the position or properties during chemical and physical reactions. As classify all forms of energy into two general categories fenergy due to motion). Within each category, there are many - potential energy (stored energy) and kinetic energy POTENTLAL ENERGY Stored energy and energy of position KINETIC ENERGY The motion of waves, electrons, atoms, molecules and substances RADIANT ENERGY (LIGHT CHEMICAL ENERGY Stored in the bonds of atoms and molecules. Petroleum Electromagnetic energy that travels in waves. Solar energy is an example natural gas, propane, and coal are ex es NUCLEAR ENERGY Stored in the nucleus of an atom the energy that holds the nucleus together. The energy in the nucleus of a uranium atom is an example STORED MECHANICAL ENERGY Stored in objects by the application of force. Compressed springs and stretched rubber bands THERMAL ENERGY (HEAT) Internal energy in substances the vibration or movement of atoms and molecules in substances. Geothermal is an example. MOTION Movement of a substance from one place to another. Wind and hydropower are examples. SOUND Movement of energy through substances in waves ELECTRICAL ENERGY are ex GRAVITATIONAL ENERGY Energy of place or position. Water in a reservoir hehind a hydropower dam is an example Movement of electrons. Lightning and electricity are examples The law of conservation of energy states that energy does not disa that energy is neither created nor destroyed. There is an important relationship between the terms energy understand this relationship. consider the following scenario. There are two containers of sand one-thirds of the way and the other filled to the top Since they have been in the same environment, they should be the same temperature. Each student in class shakes both containers Predict how the temperatures will compare: 01 ppear, it just changes forms. This means , heat, temperature and kinetic energy. In order to and the final temperatures are recorded. Shaking the container. we moved the grains of sand. causing them to collide with each other. They rubbed against each other, causing friction between the particles and producing thermal energy (heat). We transformed motion energy into thermal energy (heat). The increase in temperature was greater container has more space greater speed. More speed sand have little space to move for the container that was only one-third full, because the partially full in it for the sand to move around. The grains of sand collide with each other with means more kinetic energy (motion). In the container filled with sand, the grains of Considering the previous example, explain in a few sentences how energy, heat, temperature and kinetic energy are relatedExplanation / Answer
Law of conservation of energy
When two containers one having 1/3rd of sand filled and the other filled to the top are taken - The temperature of both at room temperature initially would be the same. This is considering the containers have been able to reach to equilibrium by letting them stay at the room temperature for a long time and no heat was supplied or taken off from it.
When the containers are moved, the motion energy or the kinetic energy of the colliding particles produces thermal energy. So the energy from kinetic energy is transformed into thermal energy that is heat, which raises the temperature of the container. The container with 1/3rd of sand have greater chances of colliding between the particles and therefore have greater temperature increase. In short the kinetic energy is equal to the amount of temperature rise for each system.