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.
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 Charles' law, which states that the volume of a gas is directly proportional to its temperature when pressure is kept constant. It provides examples of calculations using Charles' law to determine the final volume or temperature of a gas under different conditions. Specifically, it shows calculations for finding the final volume of nitrogen gas that is cooled from 373K to 273K while keeping pressure constant, and for determining the temperature at which the volume of a gas expands from 70.0 mL to 90.0 mL at constant pressure. The document thus demonstrates how Charles' law can be used to relate the volume and temperature of a gas.
ข้อสอบ GAT Eng / GAT English / GAT ภาษาอังกฤษ / แกทอังกฤษ โดย www.facebook.com/GATEngThailand
ดาวน์โหลดข้อสอบได้ที่ https://www.facebook.com/GATEngThailand/photos/a.595456617266448/2744989162313172
The document discusses Charles' law, which states that the volume of a gas is directly proportional to its temperature when pressure is kept constant. It provides examples of calculations using Charles' law to determine the final volume or temperature of a gas under different conditions. Specifically, it shows calculations for finding the final volume of nitrogen gas that is cooled from 373K to 273K while keeping pressure constant, and for determining the temperature at which the volume of a gas expands from 70.0 mL to 90.0 mL at constant pressure. The document thus demonstrates how Charles' law can be used to relate the volume and temperature of a gas.
ข้อสอบ GAT Eng / GAT English / GAT ภาษาอังกฤษ / แกทอังกฤษ โดย www.facebook.com/GATEngThailand
ดาวน์โหลดข้อสอบได้ที่ https://www.facebook.com/GATEngThailand/photos/a.595456617266448/2744989162313172
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.