John Dalton was an English chemist and meteorologist who is best known for introducing the atomic theory. He proposed that all matter is composed of small indivisible particles called atoms. Dalton's atomic theory marked the beginning of the modern atomic model in science and greatly aided the development of chemistry. He also discovered Dalton's law of partial pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of the individual gas components.
The document discusses kinetic molecular theory of gases and several gas laws and experiments. Some key points include:
- Kinetic molecular theory explains the behavior of gases based on the idea that gases are made of molecules moving in random straight lines that collide elastically.
- Graham's law of diffusion states that the rates of gas diffusion is inversely proportional to the square roots of the gases' molar masses. Heavier gases diffuse more slowly.
- An experiment showed hydrogen chloride gas diffused more slowly than ammonia gas due to hydrogen chloride having a higher molar mass.
- Gas diffusion rates depend on temperature, pressure and molar mass according to kinetic molecular theory and gas laws.
John Dalton was an English chemist and meteorologist who is best known for introducing the atomic theory. He proposed that all matter is composed of small indivisible particles called atoms. Dalton's atomic theory marked the beginning of the modern atomic model in science and greatly aided the development of chemistry. He also discovered Dalton's law of partial pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of the individual gas components.
The document discusses kinetic molecular theory of gases and several gas laws and experiments. Some key points include:
- Kinetic molecular theory explains the behavior of gases based on the idea that gases are made of molecules moving in random straight lines that collide elastically.
- Graham's law of diffusion states that the rates of gas diffusion is inversely proportional to the square roots of the gases' molar masses. Heavier gases diffuse more slowly.
- An experiment showed hydrogen chloride gas diffused more slowly than ammonia gas due to hydrogen chloride having a higher molar mass.
- Gas diffusion rates depend on temperature, pressure and molar mass according to kinetic molecular theory and gas laws.
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60. ▪ The electrolyte is an acidic water-based paste
containing MnO2, NH4Cl, ZnCl2, graphite, and
starch.
▪ inexpensive to manufacture, the cell is not
very efficient in producing electrical energy
and has a limited shelf life.
#ถ่านไฟฉายชนิดสังกะสีคาร์บอน
63. #Lithium–iodine battery
▪ consists of two cells separated by a
metallic nickel mesh that collects
charge from the anodes
▪ The anode is lithium metal, and the
cathode is a solid complex of I2
▪ The electrolyte is a layer of solid LiI
that allows Li+ ions to diffuse from the
cathode to the anode
▪ To produces only a relatively small
current, it is highly reliable and long-
lived.
66. Malekshah, et al., (2018). Thermal analysis of a cell of lead-acid battery subjected by non-uniform
heat flux during natural convection. Thermal Science and Engineering Progress. 5, 217-236.