Experiences By the 1840's, scientists had soon realized that heat, electricity, magnetism, chemical change and the energy of motion were all "Inter-convertible." Joule was extremely involved with this work, and between 1837 and 1847, he established the principle of conservation of energy, and the equivalence of heat and other forms of energy. ... The SI unit of energy, the joule, is named in his honor. ...
There is a "Law of Thermodynamics" also know as "Law of Conservation of Energy". ... Lester: "The two most reliable scientific laws, the first and second Laws of Thermodynamics, prove that conservation and deterioration are the processes that characterize and direct the physical universe. ... The total quantity of energy in the universe is a constant, but the quantity of available energy is decreasing. Therefore, as we go backward in time, the available energy would have been progressively greater until, finally, we would reach the beginning point, where available energy equaled total energy. ...
The Kelvin absolute temperature scale, as it is now known, was defined much later after conservation of energy had become better understood. We know that temperature is a measure of the average kinetic energy of particles of matter. ... The average kinetic energy of the molecules does not change with time, and it's proportional to absolute temperature. ... The average kinetic energy for the collection of gas molecules in one sample is equal to the average kinetic energy for the collection of gas molecules in the other sample. ... But it depends on the energy, the size of space within whic...
-Internal energy of a sys.... -Radiation- -Qin=heat into a system-Eint=3/2NKbT -Work-W=F**X- -Particle transfer- add 1 particle with an attractive interaction, example-water beading up-due to attractive force causes molecular vibration- -First Law of thermo-energy conservation- U-is path dependant- Q and W-are path independent- -State of a system-specify outcome of exper. or condition-i.e.-2 dice, 1 red, 1 white, 1 trial, throw dice-state= the number on the top of the dice not the sum of the two- -Statistical ensemble-list of all the possible states which could exist-i.e.-2 coins: (T,T)...
Physics for Dummies reports that latent heat is the heat needed to cause a change in phase per kilogram.[1] The law of conservation of energy states that energy is neither created nor destroyed.[2] Instead, energy is transferred; the first Law of Thermodynamics is examined. The thermal energy exchange within our water sample creates a change in our water temperature and the state of our water produces water particles that are more active (when heated) when internal thermal energy is released or less active when internal thermal energy is cooled (with cold or iced water).[3] This change in in...
