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Heat VS Temperature Heat = Thermal energy Thermal Energy = The total energy of all the particles in a material Temperature = A measure of the average energy of the particles in a material. Quiz with Thermal energy Both cups have coffee that is at a temperature of 80 degrees Celsius. Which has more heat energy? If you answered the bigger cup, you are correct because it contains a higher amount of thermal energy than the smaller cup.  Ways of measuring temperature There are 3 popular scales for measuring temperature - Celsius, Fahrenheit, and Kelvin Out of these 3, Celsius is the most common measuring scale Freezing point of water is at 0 Degrees Celsius Boiling point of water is at 100 Degrees Celsius (at sea level) Kelvin Scientists use Kelvin to measure the behavior of Gases To convert Celsius to Kelvin -  Add 273 to Celsius.  For example Freezing point of water is 273 Kelvin Boiling point of water is 373 Kelvin "Absolute Zero" is the coldest possible temperature, and is mea

Kinetic Theory of Matter is basically the theory of Moving Particles. Particles are always moving, they will collide with each other with sufficient energy - that's when chemical bond which is broken {reactant side}. This energy is called [Activation Energy - symbol "Ea"] REMEMBER: Energy of the reaction < Ea -----> The reaction will not proceed. Energy of the reaction > Ea -------> Reaction will proceed. Particle Theory of Matter: All matter is made of extremely tiny particles. All pure substances are made of their own kind of particles. All particles are moving. Particles at highest temperature move faster than those of lower temperature. Particles are attracted to each other.

  Energy Changes in a Chemical Reaction Exothermic                                                                                                Endothermic                            Energy will be given out/Release                                                              Energy if taken in/input of energy Rise in temperature ----> heat is                                                               Fall in temperature ----> heat is given out to surroundings                                                                          taken in from the surroundings Delta H is negative                                                                                   Delta H is positive Ex: Respiration:                                                                                             Photosynthesis: C6 H12 06 =02 ------> CO2 + H2O                                                      CO2 + H2O ------> C6 H12 O6 + O2 Energy Level Diagrams:

Heating curve                                                                             This is a heating curve. In the heating curve, we can see an increase in the amount of kinetic energy stored within the particle as time passes, and also a change in the state of matter, from solid to liquid to gaseous. The diagonal line represents an increase in temperature, and the horizontal line represents a change in the state of matter. The temperature doesn't increase during the time when the state of matter is changing because the heat is used to create more intermolecular space and is released, therefore keeping the temperature of the object the same. Cooling curve This is a cooling curve. In the cooling curve, we can see a decrease in the amount of kinetic energy stored within the particle as time passes, and also a change in the state of matter, from gaseous to liquid to solid. The diagonal (slightly curved) line represents a decrease in temperature, and the horizontal line represen