10 мая 2021 г. · Combustion (burning) is an “exothermic" reaction. ... However, there are some chemical reactions that can produce heat without combustion.

21 февр. 2016 г. · When it burns, it is converted into carbon dioxide and water. These have different properties from gasoline, so combustion is a chemical process ...

8 дек. 2014 г. · It's both, really. The flame exists because some compound is reacting with oxygen, releasing a significant amount of energy. That chemical ...

13 янв. 2019 г. · Simply adding heat to something will only change its physical state and will result in a physical change. If you're referring to combustion, ...

6 мар. 2016 г. · This is to say most substances require more energy to break their chemical bonds than is required to cause a phase change in the same substance.

27 февр. 2016 г. · Flammability is an inherent property of many organic materials and chemicals; they burn because with oxygen and a heat source these fuel sources ...

26 февр. 2017 г. · Thermal stability is a chemical property depending on the bonds inside the molecules of the substance. The weaker those intra-molecular ...

28 апр. 2018 г. · Burning causes oxidation of the kerosene to water and carbon dioxide/monoxide which is a chemical change plus heat. This turns the liquid ...

29 янв. 2022 г. · There are two heat values for combustion. One is higher heat value (HHV) and the other is lower heat value (LHV). While combustion takes ...

27 сент. 2024 г. · A chemical can be decomposed by air, light, contact with other chemicals, temperature ( either too hot or too cold ), contact with other ...